Security Bulletin

Microsoft Security Bulletin MS09-067 - Important

Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution (972652)

Published: November 10, 2009

Version: 1.0

General Information

Executive Summary

This security update resolves several privately reported vulnerabilities in Microsoft Office Excel. The vulnerabilities could allow remote code execution if a user opens a specially crafted Excel file. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

This security update is rated Important for all supported editions of Microsoft Office Excel 2002, Microsoft Office Excel 2003, Microsoft Office Excel 2007, Microsoft Office 2004 for Mac, and Microsoft Office 2008 for Mac; Open XML File Format Converter for Mac; and all supported versions of Microsoft Office Excel Viewer and Microsoft Office Compatibility Pack.

The update addresses the vulnerabilities by modifying the way that Excel opens and parses Excel files, and by modifying the way that Excel handles malformed records. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. Microsoft recommends that customers apply the update at the earliest opportunity.

Known Issues. Microsoft Knowledge Base Article 972652 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues. When currently known issues and recommended solutions pertain only to specific releases of this software, this article provides links to further articles.

Affected and Non-Affected Software

The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.

Affected Software

Office Suite and Other Software Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update
Microsoft Office Suites and Components
Microsoft Office XP Service Pack 3 Microsoft Office Excel 2002 Service Pack 3 (KB973471) Remote Code Execution Important MS09-021
Microsoft Office 2003 Service Pack 3 Microsoft Office Excel 2003 Service Pack 3 (KB973475) Remote Code Execution Important MS09-021
2007 Microsoft Office System Service Pack 1 and 2007 Microsoft Office System Service Pack 2 Microsoft Office Excel 2007 Service Pack 1 and Microsoft Office Excel 2007 Service Pack 2* (KB973593) Remote Code Execution Important MS09-021
Microsoft Office for Mac
Microsoft Office 2004 for Mac (KB976830) Not applicable Remote Code Execution Important MS09-021
Microsoft Office 2008 for Mac (KB976828) Not applicable Remote Code Execution Important MS09-021
Open XML File Format Converter for Mac (KB976831) Not applicable Remote Code Execution Important MS09-021
Other Office Software
Microsoft Office Excel Viewer 2003 Service Pack 3 (KB973484) Not applicable Remote Code Execution Important MS09-021
Microsoft Office Excel Viewer Service Pack 1 and Microsoft Office Excel Viewer Service Pack 2 (KB973707) Not applicable Remote Code Execution Important MS09-021
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 (KB973704) Not applicable Remote Code Execution Important MS09-021

*For Microsoft Office Excel 2007 Service Pack 1 and Microsoft Office Excel 2007 Service Pack 2, in addition to security update package KB973593, customers also need to install the security update for Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 (KB973704) to be protected from the vulnerabilities described in this bulletin.

Non-Affected Software

Office and Other Software
Microsoft Office Converter Pack
Works 8.5
Works 9
Microsoft Office SharePoint Server 2003 Service Pack 3
Microsoft Office SharePoint Server 2007 Service Pack 1 and Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 1 and Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit editions)

Where are the file information details?
Refer to the reference tables in the Security Update Deployment section for the location of the file information details.

What are the known issues that customers may experience when installing this security update?
Microsoft Knowledge Base Article 972652 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues.

Does this update contain any non-security related changes to functionality?
Yes. After this security update is installed, if a user opens a specially crafted Excel file, Excel may exit unexpectedly but the vulnerabilities addressed in this update will not be exploitable.

Why does this update address several reported security vulnerabilities?
This update contains support for several vulnerabilities because the modifications that are required to address these issues are located in related files. Instead of having to install several updates that are almost the same, customers need to install this update only.

What components of the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats are updated by this bulletin?
The update included with this security bulletin applies only to the specific component within the Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats that is affected. For example, in an Excel bulletin, only the Excel compatibility pack component files are included in the update packages and not Word or PowerPoint compatibility pack component files. Word compatibility pack component files are updated in a Word bulletin and PowerPoint compatibility pack component files are updated in a PowerPoint bulletin.

What is the Microsoft Office Excel Viewer?
The Microsoft Office Excel Viewer is a replacement for all previous Excel Viewer versions, including Excel Viewer 97 and Excel Viewer 2003. With Excel Viewer, you can open, view, and print Excel workbooks, even if you don't have Excel installed. You can also copy data from Excel Viewer to another program. However, you cannot edit data, save a workbook, or create a new workbook.

MS09-068 also describes vulnerabilities in Microsoft Office 2004 for Mac, Microsoft Office 2008 for Mac, and Open XML File Format Converter for Mac. How does MS09-068 relate to this bulletin (MS09-067)?
The security update packages in this bulletin, MS09-067, for Microsoft Office 2004 for Mac (KB976830), Microsoft Office 2008 for Mac (KB976828), and Open XML File Format Converter for Mac (KB976831) also address the vulnerabilities described in MS09-068. Users with Microsoft Office 2004 for Mac, Microsoft Office 2008 for Mac, or Open XML File Format Converter for Mac installed will only need to install these security update packages once.

The Office component discussed in this article is part of the Office Suite that I have installed on my system; however, I did not choose to install this specific component. Will I be offered this update?
Yes, if the version of the Office Suite installed on your system shipped with the component discussed in this bulletin, the system will be offered updates for it whether the component is installed or not. The detection logic used to scan for affected systems is designed to check for updates for all components that shipped with the particular Office Suite and offer the updates to a system. Users who choose not to apply an update for a component that is not installed, but is included in their version of the Office Suite, will not increase the security risk of that system. On the other hand, users who do choose to install the update will not have a negative impact on the security or performance of a system.

Does the offer to update a non-vulnerable version of Microsoft Office constitute an issue in the Microsoft update mechanism?
No, the update mechanism is functioning correctly in that it detects a lower version of the files on the system than in the update package and thus, offers the update.

Why is this update only Important for all affected versions of Excel?
Microsoft Office Excel 2002 and later versions have a built-in feature that prompts a user to Open, Save, or Cancel before opening a document. This mitigating factor reduces the vulnerability from Critical to Important because the vulnerability requires more than a single user action to complete the exploit.

I am using an older release of the software discussed in this security bulletin. What should I do?
The affected software listed in this bulletin have been tested to determine which releases are affected. Other releases are past their support life cycle. For more information about the product lifecycle, visit the Microsoft Support Lifecycle Web site.

It should be a priority for customers who have older releases of the software to migrate to supported releases to prevent potential exposure to vulnerabilities. To determine the support lifecycle for your software release, see Select a Product for Lifecycle Information. For more information about service packs for these software releases, see Lifecycle Supported Service Packs.

Customers who require custom support for older software must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit the Microsoft Worldwide Information Web site, select the country in the Contact Information list, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Microsoft Support Lifecycle Policy FAQ.

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the November bulletin summary. For more information, see Microsoft Exploitability Index.

Affected Software Excel Cache Memory Corruption Vulnerability - CVE-2009-3127 Excel SxView Memory Corruption Vulnerability - CVE-2009-3128 Excel Featheader Record Memory Corruption Vulnerability - CVE-2009-3129 Excel Document Parsing Heap Overflow Vulnerability - CVE-2009-3130 Excel Formula Parsing Memory Corruption Vulnerability - CVE-2009-3131 Excel Index Parsing Vulnerability - CVE-2009-3132 Excel Document Parsing Memory Corruption Vulnerability - CVE-2009-3133 Excel Field Sanitization Vulnerability - CVE-2009-3134 Aggregate Severity Rating
Microsoft Office Suites and Components
Microsoft Office Excel 2002 Service Pack 3 Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important
Microsoft Office Excel 2003 Service Pack 3 Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important
Microsoft Office Excel 2007 Service Pack 1 and Microsoft Office Excel 2007 Service Pack 2 Not applicable Not applicable Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important
Microsoft Office for Mac
Microsoft Office 2004 for Mac Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important
Microsoft Office 2008 for Mac Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important
Open XML File Format Converter for Mac Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Important
Other Office Software
Microsoft Office Excel Viewer 2003 Service Pack 3 Important Remote Code Execution Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important
Microsoft Office Excel Viewer Service Pack 1 and Microsoft Office Excel Viewer Service Pack 2 Not applicable Not applicable Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 Not applicable Not applicable Important Remote Code Execution Not applicable Important Remote Code Execution Important Remote Code Execution Not applicable Important Remote Code Execution Important

Excel Cache Memory Corruption Vulnerability - CVE-2009-3127

A remote code execution vulnerability exists in the way that Microsoft Office Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3127.

Mitigating Factors for Excel Cache Memory Corruption Vulnerability - CVE-2009-3127

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Cache Memory Corruption Vulnerability - CVE-2009-3127

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Use Microsoft Office File Block policy to block the opening of Office 2003 and earlier documents from unknown or untrusted sources and locations

    The following registry scripts can be used to set the File Block policy.

    Note Modifying the Registry incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from incorrect modification of the Registry can be solved. Modify the Registry at your own risk.

    • For Office 2003

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000001

      Note In order to use 'FileOpenBlock' with Office 2003, all of the latest Office 2003 security updates must be applied.

    Impact of workaround. Users who have configured the File Block policy and have not configured a special “exempt directory” as discussed in Microsoft Knowledge Base Article 922848 will be unable to open Office 2003 files or earlier versions in Office 2003 or 2007 Microsoft Office System.

    How to undo the workaround:

    • For Office 2003

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000000

  • Use the Microsoft Office Isolated Conversion Environment (MOICE) when opening files from unknown or untrusted sources

    The Microsoft Office Isolated Conversion Environment (MOICE) will protect Office 2003 installations by more securely opening Word, Excel, and PowerPoint binary format files.

    To install MOICE, you must have Office 2003 or 2007 Office system installed.

    To install MOICE, you must have the Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats. The compatibility pack is available as a free download from the Microsoft Download Center:

    Download the FileFormatConverters.exe package now

    MOICE requires all updates that are recommended for all Office programs. Visit Microsoft Update to install all recommended updates:

    https:

    To enable MOICE, change the registered handler for the .xls, .xlt, and .xla file formats. The following table describes the command to enable or to disable MOICE for the .xls, .xlt, and .xla file formats:

Command to enable MOICE to be the registered handler Command to disable MOICE as the registered handler
ASSOC .XLS=oice.excel.sheet ASSOC .xls=Excel.Sheet.8
ASSOC .XLT=oice.excel.template ASSOC .xlt=Excel.Template
ASSOC .XLA=oice.excel.addin ASSOC .xla=Excel.Addin

Note On Windows Vista and Windows Server 2008, the commands above will need to be run from an elevated command prompt.

For more information on MOICE, see Microsoft Knowledge Base Article 935865.

Impact of workaround. Office 2003 and earlier formatted documents that are converted to the 2007 Microsoft Office System Open XML format by MOICE will not retain macro functionality. Additionally, documents with passwords or that are protected with Digital Rights Management cannot be converted.

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Cache Memory Corruption Vulnerability - CVE-2009-3127

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way that Microsoft Office Excel parses the Excel spreadsheet file format when opening a specially crafted Excel spreadsheet.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convince them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
This update addresses the vulnerability by changing the way that Microsoft Office Excel parses specially crafted Excel files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel SxView Memory Corruption Vulnerability - CVE-2009-3128

A remote code execution vulnerability exists in the way Microsoft Office Excel handles specially crafted Excel files that include a malformed record object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3128.

Mitigating Factors for Excel SxView Memory Corruption Vulnerability - CVE-2009-3128

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel SxView Memory Corruption Vulnerability - CVE-2009-3128

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Use Microsoft Office File Block policy to block the opening of Office 2003 and earlier documents from unknown or untrusted sources and locations

    The following registry scripts can be used to set the File Block policy.

    Note Modifying the Registry incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from incorrect modification of the Registry can be solved. Modify the Registry at your own risk.

    • For Office 2003

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000001

      Note In order to use 'FileOpenBlock' with Office 2003, all of the latest Office 2003 security updates must be applied.

    Impact of workaround. Users who have configured the File Block policy and have not configured a special “exempt directory” as discussed in Microsoft Knowledge Base Article 922848 will be unable to open Office 2003 files or earlier versions in Office 2003 or 2007 Microsoft Office System.

    How to undo the workaround:

    • For Office 2003

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000000

  • Use the Microsoft Office Isolated Conversion Environment (MOICE) when opening files from unknown or untrusted sources

    The Microsoft Office Isolated Conversion Environment (MOICE) will protect Office 2003 installations by more securely opening Word, Excel, and PowerPoint binary format files.

    To install MOICE, you must have Office 2003 or 2007 Office system installed.

    To install MOICE, you must have the Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats. The compatibility pack is available as a free download from the Microsoft Download Center:

    Download the FileFormatConverters.exe package now

    MOICE requires all updates that are recommended for all Office programs. Visit Microsoft Update to install all recommended updates:

    </https:>https:

    To enable MOICE, change the registered handler for the .xls, .xlt, and .xla file formats. The following table describes the command to enable or to disable MOICE for the .xls, .xlt, and .xla file formats:

Command to enable MOICE to be the registered handler Command to disable MOICE as the registered handler
ASSOC .XLS=oice.excel.sheet ASSOC .xls=Excel.Sheet.8
ASSOC .XLT=oice.excel.template ASSOC .xlt=Excel.Template
ASSOC .XLA=oice.excel.addin ASSOC .xla=Excel.Addin

Note On Windows Vista and Windows Server 2008, the commands above will need to be run from an elevated command prompt.

For more information on MOICE, see Microsoft Knowledge Base Article 935865.

Impact of workaround. Office 2003 and earlier formatted documents that are converted to the 2007 Microsoft Office System Open XML format by MOICE will not retain macro functionality. Additionally, documents with passwords or that are protected with Digital Rights Management cannot be converted.

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel SxView Memory Corruption Vulnerability - CVE-2009-3128

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way that Microsoft Office Excel parses the Excel spreadsheet file format when opening a specially crafted Excel spreadsheet

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convince them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
This update addresses the vulnerability by changing the way that Microsoft Office Excel parses specially crafted Excel files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel Featheader Record Memory Corruption Vulnerability - CVE-2009-3129

A remote code execution vulnerability exists in the way that Microsoft Office Excel handles specially crafted Excel files that include a malformed record object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3129.

Mitigating Factors for Excel Featheader Record Memory Corruption Vulnerability - CVE-2009-3129

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Featheader Record Memory Corruption Vulnerability - CVE-2009-3129

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Use Microsoft Office File Block policy to block the opening of Office 2003 and earlier documents from unknown or untrusted sources and locations

    The following registry scripts can be used to set the File Block policy.

    Note Modifying the Registry incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from incorrect modification of the Registry can be solved. Modify the Registry at your own risk.

    • For Office 2003

      Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000001

      Note In order to use 'FileOpenBlock' with Office 2003, all of the latest Office 2003 security updates must be applied.

    • For Office 2007

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000001

      Note In order to use 'FileOpenBlock' with Office 2007, all of the latest Office 2007 security updates as of May 2007 must be applied.

    Impact of workaround. Users who have configured the File Block policy and have not configured a special “exempt directory” as discussed in Microsoft Knowledge Base Article 922848 will be unable to open Office 2003 files or earlier versions in Office 2003 or 2007 Microsoft Office System.

    How to undo the workaround:

    • For Office 2003

      Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000000

    • For Office 2007

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000000

  • Use the Microsoft Office Isolated Conversion Environment (MOICE) when opening files from unknown or untrusted sources

    The Microsoft Office Isolated Conversion Environment (MOICE) will protect Office 2003 installations by more securely opening Word, Excel, and PowerPoint binary format files.

    To install MOICE, you must have Office 2003 or 2007 Office system installed.

    To install MOICE, you must have the Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats. The compatibility pack is available as a free download from the Microsoft Download Center:

    Download the FileFormatConverters.exe package now

    MOICE requires all updates that are recommended for all Office programs. Visit Microsoft Update to install all recommended updates:

    </https:>https:

    To enable MOICE, change the registered handler for the .xls, .xlt, and .xla file formats. The following table describes the command to enable or to disable MOICE for the .xls, .xlt, and .xla file formats:

Command to enable MOICE to be the registered handler Command to disable MOICE as the registered handler
ASSOC .XLS=oice.excel.sheet ASSOC .xls=Excel.Sheet.8
ASSOC .XLT=oice.excel.template ASSOC .xlt=Excel.Template
ASSOC .XLA=oice.excel.addin ASSOC .xla=Excel.Addin

Note On Windows Vista and Windows Server 2008, the commands above will need to be run from an elevated command prompt.

For more information on MOICE, see Microsoft Knowledge Base Article 935865.

Impact of workaround. Office 2003 and earlier formatted documents that are converted to the 2007 Microsoft Office System Open XML format by MOICE will not retain macro functionality. Additionally, documents with passwords or that are protected with Digital Rights Management cannot be converted.

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Featheader Record Memory Corruption Vulnerability - CVE-2009-3129

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way that Microsoft Office Excel parses the Excel spreadsheet file format when opening a specially crafted Excel spreadsheet.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convince them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
This update addresses the vulnerability by changing the way that Microsoft Office Excel parses specially crafted Excel files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel Document Parsing Heap Overflow Vulnerability - CVE-2009-3130

A remote code execution vulnerability exists in the way Microsoft Office Excel handles specially crafted Excel files with malformed BIFF records. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3130.

Mitigating Factors for Excel Document Parsing Heap Overflow Vulnerability - CVE-2009-3130

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Document Parsing Heap Overflow Vulnerability - CVE-2009-3130

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Document Parsing Heap Overflow Vulnerability - CVE-2009-3130

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability is caused by Excel not correctly handling Excel files with malformed Binary File Format (BIFF) records, which could result in the corruption of memory in such a way that an attacker could execute arbitrary code.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could cause arbitrary code to run with the privileges of the user who opened the file.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convince them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
The update removes the vulnerability by modifying the way that Excel handles malformed BIFF records.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel Formula Parsing Memory Corruption Vulnerability - CVE-2009-3131

A remote code execution vulnerability exists in the way that Microsoft Office Excel parses documents containing a specially crafted formula embedded inside a cell. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights in the context of the currently logged on user.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3131.

Mitigating Factors for Excel Formula Parsing Memory Corruption Vulnerability - CVE-2009-3131

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Formula Parsing Memory Corruption Vulnerability - CVE-2009-3131

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Formula Parsing Memory Corruption Vulnerability - CVE-2009-3131

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way that Microsoft Office Excel parses the Excel spreadsheet containing a specially crafted formula.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
This vulnerability requires that a user open a specially-crafted Excel file with an affected version of Microsoft Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a malformed Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link that takes them to the attacker's site.

What systems are primarily at risk from the vulnerability?
Systems where Microsoft Excel used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
This update addresses the vulnerability by changing the way that Microsoft Office Excel parses specially crafted Excel files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel Index Parsing Vulnerability - CVE-2009-3132

A remote code execution vulnerability exists in Microsoft Office Excel as a result of pointer corruption when loading Excel formulas. The vulnerability could allow remote code execution if a user opens a specially crafted Excel file that includes a malformed formula. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3132.

Mitigating Factors for Excel Index Parsing Vulnerability - CVE-2009-3132

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Index Parsing Vulnerability - CVE-2009-3132

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Index Parsing Vulnerability - CVE-2009-3132

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way Microsoft Office Excel parses the Excel spreadsheet file format when opening a specially crafted Excel spreadsheet.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convince them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where the Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this

What does the update do?
This update addresses the vulnerability by changing the way Microsoft Office Excel handles opening specially crafted Excel files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel Document Parsing Memory Corruption Vulnerability - CVE-2009-3133

A remote code execution vulnerability exists in Microsoft Office Excel as a result of memory corruption when loading Excel records. The vulnerability could allow remote code execution if a user opens a specially crafted Excel file that includes a malformed object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3133.

Mitigating Factors for Excel Document Parsing Memory Corruption Vulnerability - CVE-2009-3133

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Document Parsing Memory Corruption Vulnerability - CVE-2009-3133

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Document Parsing Memory Corruption Vulnerability - CVE-2009-3133

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way Microsoft Office Excel parses the Excel spreadsheet file format when opening a specially crafted Excel spreadsheet.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convincing them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where the Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
This update addresses the vulnerability by changing the way Microsoft Office Excel handles opening specially crafted Excel files

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Excel Field Sanitization Vulnerability - CVE-2009-3134

A remote code execution vulnerability exists in Microsoft Office Excel that could allow remote code execution if a user opens a specially crafted Excel file that includes a malformed record object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2009-3134.

Mitigating Factors for Excel Field Sanitization Vulnerability - CVE-2009-3134

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:

  • The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.
  • An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
  • Users of Office XP and later editions of Office will be prompted with Open, Save, or Cancel before opening a document.

Workarounds for Excel Field Sanitization Vulnerability - CVE-2009-3134

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:

  • Use Microsoft Office File Block policy to block the opening of Office 2003 and earlier documents from unknown or untrusted sources and locations

    The following registry scripts can be used to set the File Block policy.

    Note Modifying the Registry incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from incorrect modification of the Registry can be solved. Modify the Registry at your own risk.

    • For Office 2003

      Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000001

      Note In order to use 'FileOpenBlock' with Office 2003, all of the latest Office 2003 security updates must be applied.

    • For Office 2007

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000001

      Note In order to use 'FileOpenBlock' with Office 2007, all of the latest Office 2007 security updates as of May 2007 must be applied.

    Impact of workaround. Users who have configured the File Block policy and have not configured a special “exempt directory” as discussed in Microsoft Knowledge Base Article 922848 will be unable to open Office 2003 files or earlier versions in Office 2003 or 2007 Microsoft Office System.

    How to undo the workaround:

    • For Office 2003

      Windows Registry Editor Version 5.00 [HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Excel\Security\FileOpenBlock] "BinaryFiles"=dword:00000000

    • For Office 2007

      Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\12.0\Excel\Security\FileOpenBlock]
      "BinaryFiles"=dword:00000000

  • Use the Microsoft Office Isolated Conversion Environment (MOICE) when opening files from unknown or untrusted sources

    The Microsoft Office Isolated Conversion Environment (MOICE) will protect Office 2003 installations by more securely opening Word, Excel, and PowerPoint binary format files.

    To install MOICE, you must have Office 2003 or 2007 Office system installed.

    To install MOICE, you must have the Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats. The compatibility pack is available as a free download from the Microsoft Download Center:

    Download the FileFormatConverters.exe package now

    MOICE requires all updates that are recommended for all Office programs. Visit Microsoft Update to install all recommended updates:

    </https:>https:

    To enable MOICE, change the registered handler for the .xls, .xlt, and .xla file formats. The following table describes the command to enable or to disable MOICE for the .xls, .xlt, and .xla file formats:

Command to enable MOICE to be the registered handler Command to disable MOICE as the registered handler
ASSOC .XLS=oice.excel.sheet ASSOC .xls=Excel.Sheet.8
ASSOC .XLT=oice.excel.template ASSOC .xlt=Excel.Template
ASSOC .XLA=oice.excel.addin ASSOC .xla=Excel.Addin

Note On Windows Vista and Windows Server 2008, the commands above will need to be run from an elevated command prompt.

For more information on MOICE, see Microsoft Knowledge Base Article 935865.

Impact of workaround. Office 2003 and earlier formatted documents that are converted to the 2007 Microsoft Office System Open XML format by MOICE will not retain macro functionality. Additionally, documents with passwords or that are protected with Digital Rights Management cannot be converted.

  • Do not open Excel files that you receive from untrusted sources or that you receive unexpectedly from trusted sources. This vulnerability could be exploited when a user opens a specially crafted file.

FAQ for Excel Field Sanitization Vulnerability - CVE-2009-3134

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system remotely. An attacker could then install programs or view, change, or delete data; or create new accounts with full user rights.

What causes the vulnerability?
The vulnerability exists in the way that Microsoft Office Excel parses the Excel spreadsheet file format when opening a specially crafted Excel spreadsheet.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

How could an attacker exploit the vulnerability?
Exploitation of this vulnerability requires that a user open a specially crafted Excel spreadsheet with an affected version of Microsoft Office Excel.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially crafted Excel file to the user and by convincing the user to open the file.

In a Web-based attack scenario, an attacker would have to host a Web site that contains an Office file that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site, and then convince them to open the specially crafted Excel file.

What systems are primarily at risk from the vulnerability?
Systems where Microsoft Office Excel is used, including workstations and terminal servers, are primarily at risk. Servers could be at more risk if administrators allow users to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
This update addresses the vulnerability by changing the way that Microsoft Office Excel parses specially crafted Excel files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

Update Information

Detection and Deployment Tools and Guidance

Manage the software and security updates you need to deploy to the servers, desktop, and mobile systems in your organization. For more information see the TechNet Update Management Center. The Microsoft TechNet Security Web site provides additional information about security in Microsoft products.

Security updates are available from Microsoft Update and Windows Update. Security updates are also available from the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update."

Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number (such as, "MS07-036"), you can add all of the applicable updates to your basket (including different languages for an update), and download to the folder of your choosing. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.

Note Microsoft discontinued support for Office Update and the Office Update Inventory Tool as of August 1, 2009. To continue getting the latest updates for Microsoft Office products, use Microsoft Update. For more information, see About Microsoft Office Update: Frequently Asked Questions.

Detection and Deployment Guidance

Microsoft provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base Article 961747.

Microsoft Baseline Security Analyzer

Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, visit Microsoft Baseline Security Analyzer.

The following table provides the MBSA detection summary for this security update.

Software MBSA 2.1.1
Microsoft Office Excel 2002 Service Pack 3 Yes
Microsoft Office Excel 2003 Service Pack 3 Yes
Microsoft Office Excel 2007 Service Pack 1 and Microsoft Office Excel 2007 Service Pack 2 Yes
Microsoft Office 2004 for Mac No
Microsoft Office 2008 for Mac No
Open XML File Format Converter for Mac No
Microsoft Office Excel Viewer 2003 Service Pack 3 Yes
Microsoft Office Excel Viewer Service Pack 1 and Microsoft Office Excel Viewer Service Pack 2 Yes
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 Yes

The latest version of MBSA has been released: Microsoft Baseline Security Analyzer 2.1.1. For more information, see Microsoft Baseline Security Analyzer 2.1.

Note For customers using legacy software not supported by MBSA 2.1.1, Microsoft Update, and Windows Server Update Services: please visit Microsoft Baseline Security Analyzer and reference the Legacy Product Support section on how to create comprehensive security update detection with legacy tools.

Windows Server Update Services

By using Windows Server Update Services (WSUS), administrators can deploy the latest critical updates and security updates for Microsoft Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000. For more information about how to deploy this security update using Windows Server Update Services, visit the Windows Server Update Services Web site.

Systems Management Server

The following table provides the SMS detection and deployment summary for this security update.

Software SMS 2.0 SMS 2003 with SUIT SMS 2003 with ITMU Configuration Manager 2007
Microsoft Office Excel 2002 Service Pack 3 No No Yes Yes
Microsoft Office Excel 2003 Service Pack 3 No No Yes Yes
Microsoft Office Excel 2007 Service Pack 1 and Microsoft Office Excel 2007 Service Pack 2 No No Yes Yes
Office 2004 for Mac No No No No
Office 2008 for Mac No No No No
Open XML File Format Converter for Mac No No No No
Microsoft Office Excel Viewer 2003 Service Pack 3 No No Yes Yes
Microsoft Office Excel Viewer Service Pack 1 and Microsoft Office Excel Viewer Service Pack 2 No No Yes Yes
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 No No Yes Yes

For SMS 2.0 and SMS 2003, the Security Update Inventory Tool (SUIT) can be used by SMS to detect security updates. See also Downloads for Systems Management Server 2.0.

For SMS 2003, the SMS 2003 Inventory Tool for Microsoft Updates (ITMU) can be used by SMS to detect security updates that are offered by Microsoft Update and that are supported by Windows Server Update Services. For more information about the SMS 2003 ITMU, see SMS 2003 Inventory Tool for Microsoft Updates. For more information about SMS scanning tools, see SMS 2003 Software Update Scanning Tools. See also Downloads for Systems Management Server 2003.

System Center Configuration Manager 2007 uses WSUS 3.0 for detection of updates. For more information about Configuration Manager 2007 Software Update Management, visit System Center Configuration Manager 2007.

For more information about SMS, visit the SMS Web site.

For more detailed information, see Microsoft Knowledge Base Article 910723: Summary list of monthly detection and deployment guidance articles.

Note If you have used an Administrative Installation Point (AIP) for deploying Office XP or Office 2003, you may not be able to deploy the update using SMS if you have updated the AIP from the original baseline. For more information, see the Office Administrative Installation Point heading in this section.

Office Administrative Installation Point

If you installed your application from a server location, the server administrator must update the server location with the administrative update and deploy that update to your system.

Update Compatibility Evaluator and Application Compatibility Toolkit

Updates often write to the same files and registry settings required for your applications to run. This can trigger incompatibilities and increase the time it takes to deploy security updates. You can streamline testing and validating Windows updates against installed applications with the Update Compatibility Evaluator components included with Application Compatibility Toolkit.

The Application Compatibility Toolkit (ACT) contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Microsoft Windows Vista, a Windows Update, a Microsoft Security Update, or a new version of Windows Internet Explorer in your environment.

Security Update Deployment

Affected Software

For information about the specific security update for your affected software, click the appropriate link:

Excel 2002 (all editions)

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs There are no more service packs planned for this software. The update for this issue may be included in a future update rollup.
Deployment
Installing without user intervention OfficeXP-kb973471-fullfile-enu/q:a
Installing without restarting OfficeXP-kb973471-fullfile-enu /r:n
Update log file Not applicable
Further information For detection and deployment, see the earlier section, Detection and Deployment Tools and Guidance. \ \ For features you can selectively install, see the Office Features for Administrative Installations subsection in this section.
Restart Requirement
Restart required? In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.\ \ To help reduce the chance that a restart will be required, stop all affected services and close all applications that may use the affected files prior to installing the security update. For more information about the reasons why you may be prompted to restart, see Microsoft Knowledge Base Article 887012.
Hotpatching Not applicable
Removal Information Use Add or Remove Programs tool in Control Panel.Note When you remove this update, you may be prompted to insert the Microsoft Office XP CD in the CD drive. Additionally, you may not have the option to uninstall the update from the Add or Remove Programs tool in Control Panel. There are several possible causes for this issue. For more information about the removal, see Microsoft Knowledge Base Article 903771.
File Information See Microsoft Knowledge Base Article 973471
Registry Key Verification Not applicable

Office Features

The following table contains the list of feature names (case sensitive) that must be reinstalled for the update. To install all features, you can use REINSTALL=ALL or you can install the following features:

Product Feature
PIPC1, PROPLUS, PRO, SBE, STD, STDEDU ExcelFiles, EXCELNonBootFiles
EXCEL ExcelFiles

Note Administrators working in managed environments can find complete resources for deploying Office updates in an organization at the Office Admin Update Center. At that site, scroll down and look under the Update Resources section for the software version you are updating. The Windows Installer Documentation also provides more information about the parameters supported by Windows Installer.

Deployment Information

Installing the Update

You can install the update from the appropriate download link in the Affected and Non-Affected Software section. If you installed your application from a server location, the server administrator must instead update the server location with the administrative update and deploy that update to your system. For more information about Administrative Installation Points, refer to the Office Administrative Installation Point information in the Detection and deployment Tools and Guidance subsection.

This security update requires that Windows Installer 2.0 or later be installed on the system. All supported versions of Windows include Windows Installer 2.0 or a later version.

To install the 2.0 or later version of Windows Installer, visit one of the following Microsoft Web sites:

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Switch Description
/q Specifies quiet mode, or suppresses prompts, when files are being extracted.
/q:u Specifies user-quiet mode, which presents some dialog boxes to the user.
/q:a Specifies administrator-quiet mode, which does not present any dialog boxes to the user.
/t:path Specifies the target folder for extracting files.
/c Extracts the files without installing them. If /t:path is not specified, you are prompted for a target folder.
/c:path Overrides the install command that is defined by author. Specifies the path and name of the Setup.inf or .exe file.
/r:n Never restarts the system after installation.
/r:I Prompts the user to restart the system if a restart is required, except when used with /q:a.
/r:a Always restarts the system after installation.
/r:s Restarts the system after installation without prompting the user.
/n:v No version checking - Install the program over any earlier version.

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841.

Removing the Update

To remove this security update, use the Add or Remove Programs tool in Control Panel. Note When you remove this update, you may be prompted to insert the Microsoft Office XP CD in the CD drive. Additionally, you may not have the option to uninstall the update from the Add or Remove Programs tool in Control Panel. There are several possible causes for this issue. For more information about the removal, see Microsoft Knowledge Base Article 903771.

Verifying That the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several versions and editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start, and then click Search.
    2. In the Search Results pane, click All files and folders under Search Companion.
    3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
    4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
      Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.
    5. On the Version tab, determine the version of the file that is installed on your system by comparing it to the version that is documented in the appropriate file information table.
      Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

Excel 2003 (all editions) and Excel Viewer 2003

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs There are no more service packs planned for this software. The update for this issue may be included in a future update rollup.
Deployment
Installing without user intervention For Excel 2003:\ Office2003-kb973475-fullfile-enu /q:a\ \ For Excel Viewer 2003:\ Office2003-kb973484-fullfile-enu /q:a
Installing without restarting For Excel 2003:\ Office2003-kb973475-fullfile-enu /r:n\ \ For Excel Viewer 2003:\ Office2003-kb973484-fullfile-enu/r:n
Update log file Not applicable
Further information For detection and deployment, see the earlier section, Detection and Deployment Tools and Guidance. \ \ For features you can selectively install, see the Office Features for Administrative Installations subsection in this section.
Restart Requirement
Restart required? In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.\ \ To help reduce the chance that a restart will be required, stop all affected services and close all applications that may use the affected files prior to installing the security update. For more information about the reasons why you may be prompted to restart, see Microsoft Knowledge Base Article 887012.
Hotpatching Not applicable
Removal Information Use Add or Remove Programs tool in Control Panel.Note When you remove this update, you may be prompted to insert the Microsoft Office 2003 CD in the CD drive. Additionally, you may not have the option to uninstall the update from the Add or Remove Programs tool in Control Panel. There are several possible causes for this issue. For more information about the removal, see Microsoft Knowledge Base Article 903771.
File Information For Excel 2003:\ See Microsoft Knowledge Base Article 973475\ \ For Excel Viewer 2003:\ See Microsoft Knowledge Base Article 973484
Registry Key Verification Not applicable

Office Features

The following table contains the list of feature names (case sensitive) that must be reinstalled for the update. To install all features, you can use REINSTALL=ALL or you can install the following features:

Product Feature
STD11, BASIC11, PERS11, STDP11, PROI11, PRO11, PRO11SB All
XLVIEW ExcelViewer

Note Administrators working in managed environments can find complete resources for deploying Office updates in an organization at the Office Admin Update Center. At that site, scroll down and look under the Update Resources section for the software version you are updating. The Windows Installer Documentation also provides more information about the parameters supported by Windows Installer.

Deployment Information

Installing the Update

You can install the update from the appropriate download link in the Affected and Non-Affected Software section. If you installed your application from a server location, the server administrator must instead update the server location with the administrative update and deploy that update to your system. For more information about Administrative Installation Points, refer to the Office Administrative Installation Point information in the Detection and deployment Tools and Guidance subsection.

This security update requires that Windows Installer 2.0 or later be installed on the system. All supported versions of Windows include Windows Installer 2.0 or a later version.

To install the 2.0 or later version of Windows Installer, visit one of the following Microsoft Web sites:

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Switch Description
/q Specifies quiet mode, or suppresses prompts, when files are being extracted.
/q:u Specifies user-quiet mode, which presents some dialog boxes to the user.
/q:a Specifies administrator-quiet mode, which does not present any dialog boxes to the user.
/t:path Specifies the target folder for extracting files.
/c Extracts the files without installing them. If /t:path is not specified, you are prompted for a target folder.
/c:path Overrides the install command that is defined by author. Specifies the path and name of the Setup.inf or .exe file.
/r:n Never restarts the system after installation.
/r:I Prompts the user to restart the system if a restart is required, except when used with /q:a.
/r:a Always restarts the system after installation.
/r:s Restarts the system after installation without prompting the user.
/n:v No version checking - Install the program over any earlier version.

Note You can combine these switches into one command. For backward compatibility, the security update also supports many of the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841.

Removing the Update

To remove this security update, use the Add or Remove Programs tool in Control Panel.

Note When you remove this update, you may be prompted to insert the Microsoft Office 2003 CD in the CD drive. Additionally, you may not have the option to uninstall the update from the Add or Remove Programs tool in Control Panel. There are several possible causes for this issue. For more information about the removal, see Microsoft Knowledge Base Article 903771.

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start and then enter an update file name in Start Search.
    2. When the file appears under Programs, right-click on the file name and click Properties.
    3. Under the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You may also click on the Details tab and compare information, such as file version and date modified, with the file information tables provided in the bulletin KB article.
    5. Finally, you may also click on the Previous Versions tab and compare file information for the previous version of the file with the file information for the new, or updated, version of the file.

Excel 2007 (all editions), Excel Viewer, and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats

Reference Table

The following table contains the security update information for this software. You can find additional information in the subsection, Deployment Information, in this section.

Inclusion in Future Service Packs The update for this issue will be included in a future service pack or update rollup
Deployment
Installing without user intervention For Excel 2007:\ Excel2007-kb973593-fullfile-x86-glb /passive\ \ For Excel Viewer:\ Office2007-kb973707-fullfile-x86-glb /passive\ \ For Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats:\ office2007-kb973704-fullfile-x86-glb /passive
Installing without restarting For Excel 2007:\ Excel2007-kb973593-fullfile-x86-glb /norestart\ \ For Excel Viewer:\ Office2007-kb973707-fullfile-x86-glb /norestart\ \ For Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats:\ office2007-kb973704-fullfile-x86-glb /norestart
Update log file Not applicable
Further information For detection and deployment, see the earlier section, Detection and Deployment Tools and Guidance.
Restart Requirement
Restart required? In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, a message appears that advises you to restart.\ \ To help reduce the chance that a restart will be required, stop all affected services and close all applications that may use the affected files prior to installing the security update. For more information about the reasons why you may be prompted to restart, see Microsoft Knowledge Base Article 887012.
Hotpatching Not applicable
Removal Information Use Add or Remove Programs tool in Control Panel.
File Information For Excel 2007:\ See Microsoft Knowledge Base Article 973593\ \ For Excel Viewer:\ See Microsoft Knowledge Base Article 973707\ \ For Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats:\ See Microsoft Knowledge Base Article 973704
Registry Key Verification Not applicable

Deployment Information

Installing the Update

You can install the update from the appropriate download link in the Affected and Non-Affected Software section. If you installed your application from a server location, the server administrator must instead update the server location with the administrative update and deploy that update to your system. For more information about Administrative Installation Points, refer to the Office Administrative Installation Point information in the Detection and deployment Tools and Guidance subsection.

This security update requires that Windows Installer 3.1 or later be installed on the system.

To install the 3.1 or later version of Windows Installer, visit one of the following Microsoft Web sites:

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

This security update supports the following setup switches.

Switch Description
/? or /help Displays usage dialog.
/passive Specifies passive mode. Requires no user interaction; users see basic progress dialogs but cannot cancel.
/quiet Specifies quiet mode, or suppresses prompts, when files are being extracted.
/norestart Suppresses restarting the system if the update requires a restart.
/forcerestart Automatically restarts the system after applying the update, regardless of whether the update requires the restart.
/extract Extracts the files without installing them. You are prompted for a target folder.
/extract:<path> Overrides the install command that is defined by author. Specifies the path and name of the Setup.inf or .exe file.
/lang:<LCID> Forces the use of a specific language, when the update package supports that language.
/log:<log file> Enables logging, by both Vnox and Installer, during the update installation.

Note You can combine these switches into one command. For backward compatibility, the security update also supports many of the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841.

Removing the Update

To remove this security update, use the Add or Remove Programs tool in Control Panel.

Note When you remove this update, you may be prompted to insert the 2007 Microsoft Office CD in the CD drive. Additionally, you may not have the option to uninstall the update from the Add or Remove Programs tool in Control Panel. There are several possible causes for this issue. For more information about the removal, see Microsoft Knowledge Base Article 903771.

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

    To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. See the section, Detection and Deployment Tools and Guidance, earlier in this bulletin for more information.

  • File Version Verification

    Because there are several editions of Microsoft Windows, the following steps may be different on your system. If they are, see your product documentation to complete these steps.

    1. Click Start and then enter an update file name in Start Search.
    2. When the file appears under Programs, right-click on the file name and click Properties.
    3. Under the General tab, compare the file size with the file information tables provided in the bulletin KB article.
    4. You may also click on the Details tab and compare information, such as file version and date modified, with the file information tables provided in the bulletin KB article.
    5. Finally, you may also click on the Previous Versions tab and compare file information for the previous version of the file with the file information for the new, or updated, version of the file.

Office 2004 for Mac

Deployment Information

Prerequisites

  • Mac OS X version 10.2.8 or later on a G3, Mac OS X-compatible processor or higher
  • Mac OS X user accounts must have administrator privileges to install this security update

Installing the Update

Download and install the appropriate language version of the Microsoft Office 2004 for Mac 11.5.6 Update from the Microsoft Download Center.

  • Quit any applications that are running, including virus-protection applications, all Microsoft Office applications, Microsoft Messenger for Mac, and Office Notifications, because they might interfere with installation.
  • Open the Microsoft Office 2004 for Mac 11.5.6 Update volume on your desktop. This step might have been performed for you.
  • To start the update process, in the Microsoft Office 2004 for Mac 11.5.6 Update volume window, double-click the Microsoft Office 2004 for Mac 11.5.6 Update application, and follow the instructions on the screen.
  • If the installation finishes successfully, you can remove the update installer from your hard disk. To verify that the installation finished successfully, see the following “Verifying Update Installation” heading. To remove the update installer, first drag the Microsoft Office 2004 for Mac 11.5.6 Update volume to the Trash, and then drag the file that you downloaded to the Trash.

Verifying Update Installation

To verify that a security update is installed on an affected system, follow these steps:

  1. In the Finder, navigate to the Application Folder (Microsoft Office 2004: Office).
  2. Select the file, Microsoft Component Plugin.
  3. On the File menu, click Get Info or Show Info.

If the Version number is 11.5.6, the update has been successfully installed.

Restart Requirement

This update does not require you to restart your computer.

Removing the Update

This security update cannot be uninstalled.

Additional Information

If you have technical questions or problems downloading or using this update, visit Microsoft for Mac Supportto learn about the support options that are available to you.

Office 2008 for Mac

Deployment Information

Prerequisites

  • Mac OS X version 10.4.9 or later on an Intel, PowerPC G5, or PowerPC G4 (500 MHz or faster) processor
  • Mac OS X user accounts must have administrator privileges to install this security update

Installing the Update

Download and install the appropriate language version of the Microsoft Office 2008 for Mac 12.2.3 Update from the Microsoft Download Center.

  • Quit any applications that are running, including virus-protection applications, all Microsoft Office applications, Microsoft Messenger for Mac, and Office Notifications, because they might interfere with installation.
  • Open the Microsoft Office 2008 for Mac 12.2.3 Update volume on your desktop. This step might have been performed for you.
  • To start the update process, in the Microsoft Office 2008 for Mac 12.2.3 Update volume window, double-click the Microsoft Office 2008 for Mac 12.2.3 Update application, and follow the instructions on the screen.
  • If the installation finishes successfully, you can remove the update installer from your hard disk. To verify that the installation finished successfully, see the following “Verifying Update Installation” heading. To remove the update installer, first drag the Microsoft Office 2008 for Mac 12.2.3 Update volume to the Trash, and then drag the file that you downloaded to the Trash.

Verifying Update Installation

To verify that a security update is installed on an affected system, follow these steps:

  1. In the Finder, navigate to the Application Folder (Microsoft Office 2008: Office).
  2. Select the file, Microsoft Component Plugin.
  3. On the File menu, click Get Info or Show Info.

If the Version number is 12.2.3, the update has been successfully installed.

Restart Requirement

This update does not require you to restart your computer.

Removing the Update

This security update cannot be uninstalled.

Additional Information

If you have technical questions or problems downloading or using this update, visit Microsoft for Mac Supportto learn about the support options that are available to you.

Open XML File Format Converter for Mac

Deployment Information

Prerequisites

  • Mac OS X version 10.4.9 or later on an Intel, PowerPC G5, or PowerPC G4 (500 MHz or faster) processor
  • Mac OS X user accounts must have administrator privileges to install this security update

Installing the Update

Download and install the appropriate language version of the Open XML File Format Converter for Mac 1.1.3 Update from the Microsoft Download Center.

  • Quit any applications that are running, including virus-protection applications, all Microsoft Office applications, Microsoft Messenger for Mac, and Office Notifications, because they might interfere with installation.
  • Open the Open XML File Format Converter for Mac 1.1.3 Update volume on your desktop. This step might have been performed for you.
  • To start the update process, in the Open XML File Format Converter for Mac 1.1.3 Update volume window, double-click the Open XML File Format Converter for Mac 1.1.3 Update application, and follow the instructions on the screen.
  • If the installation finishes successfully, you can remove the update installer from your hard disk. To verify that the installation finished successfully, see the following “Verifying Update Installation” heading. To remove the update installer, first drag the Open XML File Format Converter for Mac 1.1.3 Update volume to the Trash, and then drag the file that you downloaded to the Trash.

Verifying Update Installation

To verify that a security update is installed on an affected system, follow these steps:

  1. In the Finder, navigate to the Application Folder.
  2. Select the file, Open XML File Format Converter.
  3. On the File menu, click Get Info or Show Info.

If the Version number is 1.1.3, the update has been successfully installed.

Restart Requirement

This update does not require you to restart your computer.

Removing the Update

This security update cannot be uninstalled.

Additional Information

If you have technical questions or problems downloading or using this update, visit Microsoft for Mac Supportto learn about the support options that are available to you.

Other Information

Acknowledgments

Microsoft thanks the following for working with us to help protect customers:

  • Bing Liu of Fortinet's FortiGuard Labs for reporting the Excel Cache Memory Corruption Vulnerability (CVE-2009-3127)
  • TippingPoint and the Zero Day Initiative for reporting the Excel Cache Memory Corruption Vulnerability (CVE-2009-3127)
  • Bing Liu of Fortinet's FortiGuard Labs for reporting the Excel SxView Memory Corruption Vulnerability (CVE-2009-3128)
  • Sean Larsson of VeriSign iDefense Labs for reporting the Excel Featheader Record Memory Corruption Vulnerability (CVE-2009-3129)
  • An anonymous researcher, working with TippingPoint and the Zero Day Initiative, for reporting the Excel Featheader Record Memory Corruption Vulnerability (CVE-2009-3129)
  • Nicolas Joly of VUPEN Security for reporting the Excel Document Parsing Heap Overflow Vulnerability (CVE-2009-3130)
  • Nicolas Joly of VUPEN Security for reporting the Excel Formula Parsing Memory Corruption Vulnerability (CVE-2009-3131)
  • Nicolas Joly of VUPEN Security for reporting the Excel Index Parsing Vulnerability (CVE-2009-3132)
  • Nicolas Joly of VUPEN Security for reporting the Excel Document Parsing Memory Corruption Vulnerability (CVE-2009-3133)
  • Bing Liu of Fortinet's FortiGuard Labs for reporting the Excel Field Sanitization Vulnerability (CVE-2009-3134)

Microsoft Active Protections Program (MAPP)

To improve security protections for customers, Microsoft provides vulnerability information to major security software providers in advance of each monthly security update release. Security software providers can then use this vulnerability information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please visit the active protections Web sites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.

Support

  • Customers in the U.S. and Canada can receive technical support from Security Support or 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates. For more information about available support options, see Microsoft Help and Support.
  • International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.

Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions

  • V1.0 (November 10, 2009): Bulletin published.

Built at 2014-04-18T13:49:36Z-07:00</https:>