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Microsoft Security Bulletin MS12-064 - Critical

Vulnerabilities in Microsoft Word Could Allow Remote Code Execution (2742319)

Published:

Version: 1.0

General Information

Executive Summary

This security update resolves two privately reported vulnerabilities in Microsoft Office. The more severe vulnerability could allow remote code execution if a user opens or previews a specially crafted RTF file. An attacker who successfully exploited this vulnerability could gain the same user rights as the current 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 Critical for all supported editions of Microsoft Word 2007 and Microsoft Word 2010. This security update is also rated Important for all supported editions of Microsoft Word 2003; and all supported versions of Microsoft Word Viewer, Microsoft Office Compatibility Pack, Microsoft Word Automation Services on Microsoft SharePoint Server 2010, and Microsoft Office Web Apps. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerabilities by correcting the way Microsoft Office handles memory when parsing specially crafted files. 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. Customers can configure automatic updating to check online for updates from Microsoft Update by using the Microsoft Update service. Customers who have automatic updating enabled and configured to check online for updates from Microsoft Update typically will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates from Microsoft Update and install this update manually. For information about specific configuration options in automatic updating in supported editions of Windows XP and Windows Server 2003, see Microsoft Knowledge Base Article 294871. For information about automatic updating in supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, see Understanding Windows automatic updating.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.

See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.

Known Issues. Microsoft Knowledge Base Article 2742319 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, see Microsoft Support Lifecycle.

Affected Software

Microsoft Office Software 

Microsoft Office Suite and Other SoftwareComponentMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Microsoft Office Suites and Components
Microsoft Office 2003 Service Pack 3Microsoft Word 2003 Service Pack 3 
(KB2687483)
Remote Code ExecutionImportantKB2598332 in MS12-029 replaced by KB2687483
Microsoft Office 2007 Service Pack 2Microsoft Word 2007 Service Pack 2[1] 
(KB2687315)
Remote Code ExecutionCriticalKB2596917 in MS12-029 replaced by KB2687315
Microsoft Office 2007 Service Pack 3Microsoft Word 2007 Service Pack 3[1] 
(KB2687315)
Remote Code ExecutionCriticalKB2596917 in MS12-029 replaced by KB2687315
Microsoft Office 2010 Service Pack 1 (32-bit editions)Microsoft Word 2010 Service Pack 1 (32-bit editions) 
(KB2553488)
Remote Code ExecutionCriticalNone
Microsoft Office 2010 Service Pack 1 (64-bit editions)Microsoft Word 2010 Service Pack 1 (64-bit editions) 
(KB2553488)
Remote Code ExecutionCriticalNone
Other Microsoft Office Software
Microsoft Word Viewer 
(KB2687485)
Not applicableRemote Code ExecutionImportantKB2345009 in MS10-079 replaced by KB2687485
Microsoft Office Compatibility Pack Service Pack 2 
(KB2687314)
Not applicableRemote Code ExecutionImportantKB2596880 in MS12-029 replaced by KB2687314
Microsoft Office Compatibility Pack Service Pack 3 
(KB2687314)
Not applicableRemote Code ExecutionImportantKB2596880 in MS12-029 replaced by KB2687314

[1]For Microsoft Office Word 2007, in addition to security update package KB2687315, customers also need to install the security update for Microsoft Office Compatibility Pack (KB2687314) to be protected from the vulnerabilities described in this bulletin.

Microsoft Server Software 

SoftwareComponent Maximum Security ImpactAggregate Severity RatingUpdates Replaced
Microsoft SharePoint Server 2010 Service Pack 1Word Automation Services 
(KB2598237)
Remote Code ExecutionImportantNone
Microsoft Office Web Apps 2010 Service Pack 1 
(KB2687401)
Not applicableRemote Code ExecutionImportantKB2598239 in MS12-050 replaced by KB2687401

Non-Affected Software 

Office and Other Software
Microsoft Office 2008 for Mac
Microsoft Office for Mac 2011
Microsoft Works 9

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

Word PAPX Section Corruption Vulnerability - CVE-2012-0182

RTF File listid Use-After-Free Vulnerability - CVE-2012-2528

Update Information

Detection and Deployment Tools and Guidance

Security Update Deployment

Other Information

Acknowledgments

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

  • An anonymous researcher, working with TippingPoint's Zero Day Initiative, for reporting the Word PAPX Section Corruption Vulnerability (CVE-2012-0182)
  • An anonymous researcher, working with Beyond Security's SecuriTeam Secure Disclosure program, for reporting the RTF File listid Use-After-Free Vulnerability (CVE-2012-2528)

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 go to the active protections websites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.

Support

How to obtain help and support for this security update

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 (October 9, 2012): Bulletin published.