Security Bulletin
Microsoft Security Bulletin MS07-049 - Important
Vulnerability in Virtual PC and Virtual Server Could Allow Elevation of Privilege (937986)
Published: August 14, 2007 | Updated: November 13, 2007
Version: 2.0
General Information
Executive Summary
This important security update resolves one privately reported vulnerability. This is an elevation of privilege vulnerability. The vulnerability in Microsoft Virtual PC and Microsoft Virtual Server could allow a guest operating system user to run code on the host or another guest operating system. Only guest operating system users who are granted administrative permissions to the guest operating system would be able to exploit this vulnerability. Guest operating system users not granted administrative permissions to the guest operating system would be unable to exploit this vulnerability.
This is an important security update for supported releases of Microsoft Virtual PC 2004, Microsoft Virtual Server 2005, Microsoft Virtual Server 2005 R2, Microsoft Virtual PC for Mac Version 6.1, and Microsoft Virtual PC for Mac Version 7. For more information, see the subsection, Affected and Non-Affected Software, in this section.
This security update addresses the vulnerability by improving interaction and initialization of components that communicate with the host operating system for virtual machines running under Microsoft Virtual PC and Microsoft Virtual Server. For more information about the vulnerabilities, 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 937986 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues.
Affected and Non-Affected Software
The software listed here has 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
| Affected Software | Maximum Security Impact | Aggregate Severity Rating | Bulletins Replaced by This Update |
|---|---|---|---|
| Microsoft Virtual PC 2004 | Elevation of Privilege | Important | None |
| Microsoft Virtual PC 2004 Service Pack 1 | Elevation of Privilege | Important | None |
| Microsoft Virtual Server 2005 Standard Edition | Elevation of Privilege | Important | None |
| Microsoft Virtual Server 2005 Enterprise Edition | Elevation of Privilege | Important | None |
| Microsoft Virtual Server 2005 R2 Standard Edition | Elevation of Privilege | Important | None |
| Microsoft Virtual Server 2005 R2 Enterprise Edition | Elevation of Privilege | Important | None |
| Microsoft Virtual PC for Mac Version 6.1 | Elevation of Privilege | Important | None |
| Microsoft Virtual PC for Mac Version 7 | Elevation of Privilege | Important | None |
Non-Affected Software
| Non-Affected Software |
|---|
| Microsoft Virtual PC 2007 |
| Microsoft Virtual Server 2005 R2 Service Pack 1 |
Frequently Asked Questions (FAQ) Related to This Security Update
Why did Microsoft reissue this bulletin on November 13, 2007?
The security update for Microsoft Virtual PC 2004, Microsoft Virtual PC 2004 Service Pack 1, Microsoft Virtual Server 2005 Standard Edition, and Microsoft Virtual Server 2005 Enterprise Edition did not correctly install on Windows 2000 Service Pack 4 due to a registry key issue. A revised security update is now available to install on Windows 2000 Service Pack 4. Microsoft recommends that customers apply the update at the earliest opportunity. No action is required on systems where the security update has been successfully installed.
The security update for Microsoft Virtual PC 2004, Microsoft Virtual PC 2004 Service Pack 1, Microsoft Virtual Server 2005 Standard Edition, Microsoft Virtual Server 2005 Enterprise Edition, Microsoft Virtual Server 2005 R2 Standard Edition, and Microsoft Virtual Server 2005 R2 Enterprise Edition extracts files to the %TEMP% folder. A revised security update is now available to install, which extracts files to the %ProgramFiles% folder. Microsoft recommends that customers apply the update at the earliest opportunity. No action is required on systems where the security update has been successfully installed.
What are the known issues that customers may experience when they install this security update?
Microsoft Knowledge Base Article 937986 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues.
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 has been tested to determine which releases are affected. Other releases are past their support life cycle. To determine the support life cycle for your software release, visit Microsoft Support Lifecycle.
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. For more information about the Windows Product Lifecycle, visit the following Microsoft Support Lifecycle. For more information about the extended security update support period for these software releases, visit the Microsoft Product Support Services Web site.
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, 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 Windows Operating System Product Support Lifecycle FAQ.
Vulnerability Information
Severity Ratings and Vulnerability Identifiers
| Affected Software | Virtual PC and Virtual Server Heap Overflow Vulnerability CVE-2007-0948 | Aggregate Severity Rating |
|---|---|---|
| Microsoft Virtual PC 2004 | ImportantElevation of Privilege | Important |
| Microsoft Virtual PC 2004 Service Pack 1 | ImportantElevation of Privilege | Important |
| Microsoft Virtual Server 2005 Standard Edition | ImportantElevation of Privilege | Important |
| Microsoft Virtual Server 2005 Enterprise Edition | ImportantElevation of Privilege | Important |
| Microsoft Virtual Server 2005 R2 Standard Edition | ImportantElevation of Privilege | Important |
| Microsoft Virtual Server 2005 R2 Enterprise Edition | ImportantElevation of Privilege | Important |
| Microsoft Virtual PC for Mac Version 6.1 | ImportantElevation of Privilege | Important |
| Microsoft Virtual PC for Mac Version 7 | ImportantElevation of Privilege | Important |
Virtual PC and Virtual Server Heap Overflow Vulnerability - CVE-2007-0948
An elevation of privilege vulnerability exists in Microsoft Virtual PC and Microsoft Virtual Server that could allow a user with administrator permissions to the guest operating system to run code on the host operating system or other guest operating systems. An attacker with administrator permissions to the guest operating system, could exploit the vulnerability by running specially crafted code on the guest operating system. This could result in a heap overflow on the host or other guest operating systems. An attacker who successfully exploited this vulnerability could take complete control of an affected system.
To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-0948.
Mitigating Factors for Virtual PC and Virtual Server Heap Overflow Vulnerability - CVE-2007-0948
Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, which could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:
- An attacker must have administrator permissions to the guest operating system to exploit this vulnerability. Guest operating system logins not granted administrative permissions to the guest operating system are unable to exploit this vulnerability.
- Microsoft Virtual PC 2007 is not vulnerable to this issue. You can download the full version of Microsoft Virtual PC 2007 on the Microsoft Download Center.
- Microsoft Virtual Server 2005 R2 SP1 is not vulnerable to this issue. You can download the full version of Microsoft Virtual Server 2005 R2 SP1 on the Microsoft Download Center.
Workarounds for Virtual PC and Virtual Server Heap Overflow Vulnerability - CVE-2007-0948
Microsoft has not identified any workarounds for this vulnerability.
FAQ for Virtual PC and Virtual Server Heap Overflow Vulnerability - CVE-2007-0948
What is the scope of the vulnerability?
An elevation of privilege vulnerability exists in Microsoft Virtual PC and Microsoft Virtual Server that could allow a user with administrator permissions to the guest operating system to run code on the host operating system or other guest operating systems. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs or view, change, or delete data.
What causes the vulnerability?
Interaction and initialization of components that communicate with the host operating system are not performed correctly in Microsoft Virtual PC and Microsoft Virtual Server.
What might an attacker use the vulnerability to do?
An attacker with administrator permissions to the guest operating who successfully exploited this vulnerability could take complete control of an affected system. The attacker could then gain access to host or other guest operating systems which could result in a heap overflow on the host or other guest operating systems.
How could an attacker exploit the vulnerability?
An attacker with administrator permissions to the guest operating system could run specially crafted code to exploit this vulnerability. An attacker must have administrator permissions to the guest operating system to exploit this vulnerability.
What systems are primarily at risk from the vulnerability?
Any systems where Microsoft Virtual PC or Microsoft Virtual Server is used, such as workstations or terminal servers, are at risk from this vulnerability. This vulnerability requires that an attacker have administrator permissions to the guest operating system to exploit this vulnerability. Guest operating system logins not granted administrative permissions on the guest operating system are unable to exploit this vulnerability.
What does the update do?
The update removes the vulnerability in Microsoft Virtual PC and Microsoft Virtual Server by modifying interaction and initialization of components that communicate with the host operating system.
When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure. Microsoft had not received any information to indicate that this vulnerability had been publicly disclosed 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 computers 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, Windows Update, and Office Update. Security updates are also available at the Microsoft Download Center. You can find them most easily by doing a keyword search for "security_patch." Finally, security updates can be downloaded from the Windows Update Catalog. For more information about the Windows Update Catalog, see Microsoft Knowledge Base Article 323166.
Detection and Deployment Guidance
Microsoft has provided detection and deployment guidance for this month’s security updates. This guidance will also help IT professionals understand how they can use various tools to help deploy the security update, such as Windows Update, Microsoft Update, Office Update, the Microsoft Baseline Security Analyzer (MBSA), the Office Detection Tool, Microsoft Systems Management Server (SMS), the Extended Security Update Inventory Tool, and the Enterprise Update Scan Tool (EST). For more information, see Microsoft Knowledge Base Article 910723.
Microsoft Baseline Security Analyzer and Enterprise Update Scan Tool (EST)
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.
MBSA 1.2.1 does not support detection for this security update. The Enterprise Update Scan Tool does, and is what customers can use instead of MBSA 1.2.1. For download links and more information about the version of EST that is being released this month, see Microsoft Knowledge Base Article 894193. SMS customers should also see the heading, Systems Management Server, for more information about SMS and EST.
The following table provides the MBSA and EST detection summary for this security update.
| Software | MBSA 1.2.1 | EST | MBSA 2.0.1 |
|---|---|---|---|
| Microsoft Virtual PC 2004 | No | Yes | Yes |
| Microsoft Virtual Server 2005 | No | Yes | Yes |
| Microsoft Virtual Server 2005 R2 | No | Yes | Yes |
| Microsoft Virtual PC for Mac Version 6.1 | No | No | No |
| Microsoft Virtual PC for Mac Version 7 | No | No | No |
Note for Windows Vista Microsoft does not support installing MBSA 2.0.1 on computers that run Windows Vista, but you may install MBSA 2.0.1 on a supported operating system and then scan the Windows Vista-based computer remotely. For additional information about MBSA support for Windows Vista, visit the MBSA Web site. See also Microsoft Knowledge Base Article 931943: Microsoft Baseline Security Analyzer (MBSA) support for Windows Vista.
For more information about MBSA, visit the MBSA Web site. For more information about the software that Microsoft Update and MBSA 2.0 currently do not detect, see Microsoft Knowledge Base Article 895660.
Windows Server Update Services
By using Windows Server Update Services (WSUS), administrators can deploy the latest critical updates and security updates for Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000 to Windows 2000 and later operating systems. 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 | EST | SMS 2003 |
|---|---|---|---|
| Microsoft Virtual PC 2004 | No | Yes | Yes |
| Microsoft Virtual Server 2005 | No | Yes | Yes |
| Microsoft Virtual Server 2005 R2 | No | Yes | Yes |
| Microsoft Virtual PC for Mac Version 6.1 | No | No | No |
| Microsoft Virtual PC for Mac Version 7 | No | No | No |
SMS 2.0 and SMS 2003 Software Update Services (SUS) Feature Pack can use MBSA 1.2.1 for detection and therefore have the same limitation that is listed earlier in this bulletin related to programs that MBSA 1.2.1 does not detect.
For SMS 2.0, the SMS SUS Feature Pack, which includes the Security Update Inventory Tool (SUIT), can be used by SMS to detect security updates. SMS SUIT uses the MBSA 1.2.1 engine for detection. For more information about SUIT, visit the following Microsoft Web site. For more information about the limitations of SUIT, see Microsoft Knowledge Base Article 306460. The SMS SUS Feature Pack also includes the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications.
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, visit the following Microsoft Web site. SMS 2003 can also use the Microsoft Office Inventory Tool to detect required updates for Microsoft Office applications.
Note for Windows Vista Microsoft Systems Management Server 2003 with Service Pack 3 includes support for Windows Vista manageability.
For more information about SMS, visit the SMS Web site.
Security Update Deployment
Affected Software
For information about the specific security update for your affected software, click the appropriate link:
Microsoft Virtual PC (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 | The update for this issue may be included in a future update rollup |
|---|---|
| Deployment | |
| Installing without user intervention | Microsoft Virtual PC 2004:VPC2004-KB937986.exe /Q:A /R:A |
| Microsoft Virtual PC 2004 Service Pack 1:VPC2004SP1-KB937986.exe /Q:A /R:A | |
| Installing without restarting | Microsoft Virtual PC 2004:VPC2004-KB937986.exe /R:N |
| Microsoft Virtual PC 2004 Service Pack 1:VPC2004SP1-KB937986.exe /R:N | |
| Update log file | KB937986.log |
| Further information | See the subsection, Detection and Deployment Tools and Guidance |
| Restart Requirement | |
| Restart required | This update does not force a restart. However, if either Virtual PC.exe or VSSRVC.exe is running you must restart your system after you apply this security update. |
| Hotpatching | Not applicable |
| Removal Information | This update cannot be uninstalled. |
| File Information | See the heading, File Information, below for the full file manifest |
| Registry Key Verification | Microsoft Virtual PC 2004:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\B56328045890A99429D04E4D14D45CF8\Patches |
| Microsoft Virtual PC 2004 Service Pack 1:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\EDDFACCCCECE4EA4DB79400767BB4D9A\Patches |
File Information
The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
For supported editions of Virtual PC 2004 RTM:
| File Name | Version | Date | Time | Size | Folder |
|---|---|---|---|---|---|
| Virtual pc.exe | 5.3.0.583 | 07-Jun-2007 | 13:16 | 3,990,880 | VPC2004 |
For supported editions of Virtual PC 2004 Service Pack 1:
| File Name | Version | Date | Time | Size | Folder |
|---|---|---|---|---|---|
| Virtual pc.exe | 5.3.582.44 | 07-Jun-2007 | 06:48 | 4,007,280 | VPC2004SP1\582.44 |
| Virtual pc.exe | 5.3.582.45 | 07-Jun-2007 | 12:28 | 4,007,280 | VPC2004SP1\582.45 |
Note For a complete list of supported versions and editions, see the Support Lifecycle Index. For a complete list of service packs, see Lifecycle Supported Service Packs. For more information on the support lifecycle policy, see Microsoft Support Lifecycle.
Deployment Information
Installing the Update
When you install this security update, the IExpress installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.
For more information about the installer, visit the IExpress Technology and the IExpress Wizard Web Site.
For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.
Microsoft Knowledge Base Article 937987 documents the currently known installation issues that customers may experience when they install this security update.
This security update supports the following IExpress batch-mode setup switches.
| Switch | Description |
|---|---|
| /help | Displays the command-line options |
| Setup Modes | |
| /Q | Specifies quiet mode, or suppresses prompts, when files are being extracted. This switch does not suppress prompts when Windows Update Setup is running. |
| /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. |
| /C:<UNC location> | Specifies the path and name of the Setup .inf or .exe file. |
| Restart Options | |
| /R:N | Never restarts the computer after installation. |
| /R:A | Always restarts the computer after installation. |
| /R:S | Restarts the computer after installation without prompting the user. |
| Special Options | |
| /T:<directory path> | Specifies the target folder for extracting files. |
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.
Click Start, and then click Search.
In the Search Results pane, click All files and folders under Search Companion.
In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
Note Depending on the edition of the operating system, or the programs that are installed on your system, some of the files that are listed in the file information table may not be installed.
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.
Registry Key Verification
You may also be able to verify the files that this security update has installed by reviewing the registry keys listed in the Reference Table in this section.
These registry keys may not contain a complete list of installed files. Also, these registry keys may not be created correctly when an administrator or an OEM integrates or slipstreams this security update into the Windows installation source files.
Microsoft Virtual Server (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 | The update for this issue will be included in a future service pack or update rollup |
|---|---|
| Deployment | |
| Installing without user intervention | Microsoft Virtual Server 2005 Standard Edition English:VS2005-STD-KB937986.exe /Q:A /R:A |
| Microsoft Virtual Server 2005 Enterprise Edition English:VS2005-ENT-KB937986.exe /Q:A /R:A | |
| Microsoft Virtual Server 2005 Standard Edition Japanese:VS2005-STD-JPN-KB937986.exe /Q:A /R:A | |
| Microsoft Virtual Server 2005 Enterprise Edition Japanese:VS2005-ENT-JPN-KB937986.exe /Q:A /R:A | |
| Microsoft Virtual Server 2005 R2 Standard Edition:VS2005R2-STD-KB937986-x86.exe /Q:A /R:A | |
| Microsoft Virtual Server 2005 R2 Enterprise Edition:VS2005R2-ENT-KB937986-x86.exe /Q:A /R:A | |
| Microsoft Virtual Server 2005 R2 Standard Edition 64bitVS2005R2-STD-KB937986-x64.exe /Q:A /R:A | |
| Microsoft Virtual Server 2005 R2 Enterprise Edition 64bitVS2005R2-ENT-KB937986-x64.exe /Q:A /R:A | |
| Installing without restarting | Microsoft Virtual Server 2005 Standard Edition English:VS2005-STD-KB937986.exe /Q:A /R:N |
| Microsoft Virtual Server 2005 Enterprise Edition English:VS2005-ENT-KB937986.exe /Q:A /R:N | |
| Microsoft Virtual Server 2005 Standard Edition Japanese:VS2005-STD-JPN-KB937986.exe /Q:A /R:N | |
| Microsoft Virtual Server 2005 Enterprise Edition Japanese:VS2005-ENT-JPN-KB937986.exe /Q:A /R:N | |
| Microsoft Virtual Server 2005 R2 Standard Edition:VS2005R2-STD-KB937986-x86.exe /Q:A /R:N | |
| Microsoft Virtual Server 2005 R2 Enterprise Edition:VS2005R2-ENT-KB937986-x86.exe /Q:A /R:N | |
| Microsoft Virtual Server 2005 R2 Standard Edition 64bitVS2005R2-STD-KB937986-x64.exe /Q:A /R:N | |
| Microsoft Virtual Server 2005 R2 Enterprise Edition 64bitVS2005R2-ENT-KB937986-x64.exe /Q:A /R:N | |
| Update log file | KB937986.log |
| Further information | See the subsection, Detection and Deployment Tools and Guidance |
| Restart Requirement | |
| Restart required | This update does not force a restart. However, if either Virtual PC.exe or VSSRVC.exe is running you must restart your system after you apply this security update. |
| Hotpatching | Not applicable |
| Removal Information | This update cannot be uninstalled. |
| File Information | See the heading, File Information, below for the full file manifest. |
| Registry Key Verification | Microsoft Virtual Server 2005 Standard Edition English:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\9DE697F1BCD4F6449970E79BC8817497\0EEDF7F0258333042A16F38A4BEC64C6 Microsoft Virtual Server 2005 Enterprise Edition English: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\813ACF1D304B0fb43A2E440E1CF2ADD3 Microsoft Virtual Server 2005 Standard Edition Japanese: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\9DE697F1BCD4F6449970E79BC8817497\67EC4B5345C7e7347BBA24CFF8B977B6 Microsoft Virtual Server 2005 Enterprise Edition Japanese: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\C31148E7379Aa7c48BF2343AB582C3D8 Microsoft Virtual Server 2005 R2 Standard Edition and Microsoft Virtual Server 2005 R2 Standard Edition 64bit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\96CF2B3B315599c4A9E75C85A4295880 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\841D4B70460E43847AC7C5B6E6985F72 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\48572D4B31FE10546BA23007F32DD4B8 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\E8C96002994181249A5DB5AB0F24EE7D HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\26AA75669335b1b42BAA47251856B186 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\765EBF1C3AC402f45A4CFC0AADA5F66B HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\FA1BFB69174399549A99318BF40D9024 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\BDCA4609682095b41B43F256D1FD4DD7 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\A1D5FBC979641f0499760ED1FA67AF82 Microsoft Virtual Server 2005 R2 Enterprise Edition and Microsoft Virtual Server 2005 R2 Enterprise Edition 64bit: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\2ACE96BF53CE47C46B808783D50059D9 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\6F005480BFB13b146AF9ED7DB30BF741 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\EEAD88FD5E86b30468F709E155367BE3 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\D3DD1E6C15EF3d84092240C256768971 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\9E6E9D17C011cba42A86F2C90D0F666B HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\50444C597C4B9e749A97A7E5E8AFDFC2 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\6B18E7066E263cf47BB33F9E69BFFDB8 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\768F573DA71B5e94C92F9CF42C93D7F7 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\9DE697F1BCD4F6449970E79BC8817497\3A37DE5D696000b498063A6D346827DF |
Note For supported versions of Windows XP Professional x64 Edition, this security update is the same as supported versions of the Windows Server 2003 x64 Edition security update.
File Information
The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
For supported 32-bit editions of Virtual Server 2005 RTM Standard Edition English:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.15 | 06-Jun-2007 | 11:35 | 2,983,288 | X86 | VSRTM\STD |
For supported 32-bit editions of Virtual Server 2005 RTM Enterprise Edition English:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.15 | 06-Jun-2007 | 11:34 | 2,983,288 | X86 | VSRTM\ENT |
For supported 32-bit editions of Virtual Server 2005 RTM Standard Edition Japanese:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.106 | 19-Jun-2007 | 13:10 | 2,987,384 | X86 | VSRTM\JPN\STD |
For supported 32-bit editions of Virtual Server 2005 RTM Enterprise Edition Japanese:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.106 | 19-Jun-2007 | 13:10 | 2,987,384 | X86 | VSRTM\JPN\ENT |
For supported 32-bit editions of Virtual Server 2005 R2 Standard Edition:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.356 | 29-Jun-2007 | 10:49 | 3,315,064 | X86 | VSR2\STD\I386 |
For supported 32-bit editions of Virtual Server 2005 R2 Enterprise Edition:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.356 | 29-Jun-2007 | 10:49 | 3,315,064 | X86 | VSR2\ENT\I386 |
For supported 64-bit editions of Virtual Server 2005 R2 Standard Edition:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.356 | 29-Jun-2007 | 10:55 | 5,887,352 | x64 | VSR2\STD\AMD64 |
For supported 64-bit editions of Virtual Server 2005 R2 Enterprise Edition:
| File Name | Version | Date | Time | Size | CPU | Folder |
|---|---|---|---|---|---|---|
| Vssrvc.exe | 1.1.465.356 | 29-Jun-2007 | 10:55 | 5,887,352 | x64 | VSR2\ENT\AMD64 |
Note For a complete list of supported versions and editions, see the Support Lifecycle Index. For a complete list of service packs, see Lifecycle Supported Service Packs. For more information on the support lifecycle policy, see Microsoft Support Lifecycle.
Deployment Information
Installing the Update
When you install this security update, the IExpress installer checks whether one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.
For more information about the installer, visit the IExpress Technology and the IExpress Wizard Web Site.
For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.
Microsoft Knowledge Base Article 937987 documents the currently known installation issues that customers may experience when they install this security update.
This security update supports the following IExpress batch-mode setup switches.
| Switch | Description |
|---|---|
| /help | Displays the command-line options |
| Setup Modes | |
| /Q | Specifies quiet mode, or suppresses prompts, when files are being extracted. This switch does not suppress prompts when Windows Update Setup is running. |
| /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. |
| /C:<UNC location> | Specifies the path and name of the Setup .inf or .exe file. |
| Restart Options | |
| /R:N | Never restarts the computer after installation. |
| /R:A | Always restarts the computer after installation. |
| /R:S | Restarts the computer after installation without prompting the user. |
| Special Options | |
| /T:<directory path> | Specifies the target folder for extracting files. |
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.
Click Start, and then click Search.
In the Search Results pane, click All files and folders under Search Companion.
In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
In the list of files, right-click a file name from the appropriate file information table, and then click Properties.
Note Depending on the edition of the operating system, or the programs that are installed on your system, some of the files that are listed in the file information table may not be installed.
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.
Registry Key Verification
You may also be able to verify the files that this security update has installed by reviewing the registry keys listed in the Reference Table in this section.
These registry keys may not contain a complete list of installed files. Also, these registry keys may not be created correctly when an administrator or an OEM integrates or slipstreams this security update into the Windows installation source files.
Microsoft Virtual PC for Mac 6 (all editions)
Deployment Information
Prerequisites
- The Microsoft Virtual PC for Mac Version 6.1.1 Update must be installed on your computer.
- Mac OS 9.2.2 (Classic) or a later version of Mac OS on Macintosh PowerPC, native G3 or G4 machines (Intel processors are not supported).
- 60 MB of available hard disk space is temporarily required to complete installation; after installation, the program requires 30 MB of hard disk space.
- If you are using Mac OS 9.2.2, make sure Allume Systems StuffIt Expander 5.5 or later is installed on your computer. If an earlier version of StuffIt Expander is installed on your computer, you might not be able to install this security update.
- 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 Virtual PC for Mac Version 6.1.2 Update from the Microsoft mactopia Web site.
Removing the Update
This security update cannot be uninstalled.
Additional Information
For more information about the Virtual PC for Mac 6.1.2 Update, after you install it, see Virtual PC Help.
If you have technical questions or problems downloading or using this update, visit Microsoft for Mac Support to learn about the support options that are available to you.
Microsoft Virtual PC for Mac 7 (all editions)
Deployment Information
Prerequisites
- The Microsoft Virtual PC for Mac Version 7.0.2 Update must be installed on your computer.
- Mac OS X 10.2.8 or a later version of Mac OS on 700 MHz native PowerPC G3, G4, or G5 processor (Intel processors are not supported)
- 70 MB of available hard disk space is temporarily required to complete installation; after installation, the program requires 50 MB of hard disk space.
- 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 Virtual PC for Mac Version 7.0.3 Update from the Microsoft mactopia Web site.
Removing the Update
This security update cannot be uninstalled.
Additional Information
For more information about the Virtual PC for Mac 7.0.3 Update, after you install it, see Virtual PC Help.
If you have technical questions or problems downloading or using this update, visit the 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:
- Rafal Wojtczuk of McAfee Avert Labs for working with Microsoft on the Vulnerability in Virtual PC and Virtual Server Could Allow Elevation of Privilege Vulnerability - (CVE-2007-0948).
Support
- Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
- 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 (August 14, 2007): Bulletin published.
- V2.0 (November 13, 2007): The security update for Microsoft Virtual PC 2004, Microsoft Virtual PC 2004 Service Pack 1, Microsoft Virtual Server 2005 Standard Edition, Microsoft Virtual Server 2005 Enterprise Edition, Microsoft Virtual Server 2005 R2 Standard Edition, and Microsoft Virtual Server 2005 R2 Enterprise Edition did not correctly install in certain cases. Microsoft recommends that customers apply the update at the earliest opportunity. No action is required on systems where the security update has been successfully installed. For details please read the "Frequently Asked Questions (FAQ) Related to This Security Update" section.
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