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Microsoft Security Bulletin MS12-043 - Critical

Vulnerability in Microsoft XML Core Services Could Allow Remote Code Execution (2722479)

Published: | Updated:

Version: 4.2

General Information

Executive Summary

This security update resolves a publicly disclosed vulnerability in Microsoft XML Core Services. The vulnerability could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker would have no way to force users to visit such a website. Instead, an attacker would have to convince users to visit the website, typically by getting them to click a link in an email message or Instant Messenger message that takes the user to the attacker's website.

This security update is rated Critical for Microsoft XML Core Services 3.0, Microsoft XML Core Services 4.0, and Microsoft XML Core Services 6.0 on all supported editions of Windows XP, Windows Vista, and Windows 7; Critical for Microsoft XML Core Services 4.0 when installed on all supported editions of Windows 8; Critical for Microsoft XML Core Services 5.0 when installed with all supported editions of Microsoft Office 2003, Microsoft Office 2007, Microsoft Office Word Viewer, Microsoft Office Compatibility Pack, Microsoft Expression Web, Microsoft Office SharePoint Server 2007, Microsoft Groove 2007, and Microsoft Groove Server 2007; Moderate for Microsoft XML Core Services 3.0, 4.0, and 6.0 on all supported editions of Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2; and Moderate for Microsoft XML Core Services 4.0 when installed on all supported editions of Windows Server 2012. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by modifying the way that MSXML initializes objects in memory before use. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

This security update also addresses the vulnerability first described in Microsoft Security Advisory 2719615.

Recommendation. The majority of customers have automatic updating enabled and 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 and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

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 2722479 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 

Windows Operating Systems and Components

Operating SystemComponentMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Windows XP
Windows XP Service Pack 3Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

KB954459 in MS08-069 replaced by KB2719985
Windows XP Professional x64 Edition Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2721693)
Remote Code ExecutionCriticalKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

KB954459 in MS08-069 replaced by KB2721693
Windows Server 2003
Windows Server 2003 Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2721693)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

KB954459 in MS08-069 replaced by KB2721693
Windows Server 2003 x64 Edition Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2721693)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

KB954459 in MS08-069 replaced by KB2721693
Windows Server 2003 with SP2 for Itanium-based SystemsMicrosoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2721693)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

KB954459 in MS08-069 replaced by KB2721693
Windows Vista
Windows Vista Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Vista x64 Edition Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008
Windows Server 2008 for 32-bit Systems Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008 for x64-based Systems Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008 for Itanium-based Systems Service Pack 2Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows 7
Windows 7 for 32-bit SystemsMicrosoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows 7 for 32-bit Systems Service Pack 1Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalNo updates replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows 7 for x64-based SystemsMicrosoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows 7 for x64-based Systems Service Pack 1Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionCriticalNo updates replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008 R2
Windows Server 2008 R2 for x64-based SystemsMicrosoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008 R2 for x64-based Systems Service Pack 1Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateNo updates replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008 R2 for Itanium-based SystemsMicrosoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateKB2079403 in MS10-051 replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1Microsoft XML Core Services 3.0
(KB2719985)

Microsoft XML Core Services 4.0
(KB2721691)

Microsoft XML Core Services 6.0
(KB2719985)
Remote Code ExecutionModerateNo updates replaced by KB2719985

No updates replaced by KB2721691

No updates replaced by KB2719985
Windows 8
Windows 8 for 32-bit SystemsMicrosoft XML Core Services 4.0
(KB2721691)
Remote Code ExecutionCriticalNone
Windows 8 for 64-bit SystemsMicrosoft XML Core Services 4.0
(KB2721691)
Remote Code ExecutionCriticalNone
Windows Server 2012
Windows Server 2012Microsoft XML Core Services 4.0
(KB2721691)
Remote Code ExecutionModerateNone

 

Microsoft Office Suites and Software

Office SoftwareComponentMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Microsoft Office Suites and Components
Microsoft Office 2003 Service Pack 3Microsoft XML Core Services 5.0
(KB2687627)
Remote Code ExecutionCriticalKB951535 in MS08-069 replaced by KB2687324 or KB2687627
Microsoft Office 2007 Service Pack 2Microsoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalNone
Microsoft Office 2007 Service Pack 3Microsoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalNone
Other Microsoft Office Software
Microsoft Office Word ViewerMicrosoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalNone
Microsoft Office Compatibility Pack Service Pack 2Microsoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalNone
Microsoft Office Compatibility Pack Service Pack 3Microsoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalNone
Microsoft Groove 2007 Service Pack 2Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone
Microsoft Groove 2007 Service Pack 3Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone

 

Microsoft Developer Tools and Software

SoftwareComponentMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Microsoft Expression Web Service Pack 1Microsoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalNone
Microsoft Expression Web 2Microsoft XML Core Services 5.0
(KB2596856)
Remote Code ExecutionCriticalKB951550 in MS08-069 replaced by KB2596856

 

Microsoft Server Software

SoftwareComponentMaximum Security ImpactAggregate Severity RatingUpdates Replaced
Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit editions)Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone
Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit editions)Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone
Microsoft Office SharePoint Server 2007 Service Pack 3 (32-bit editions)Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone
Microsoft Office SharePoint Server 2007 Service Pack 3 (64-bit editions)Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone
Microsoft Groove Server 2007 Service Pack 2Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone
Microsoft Groove Server 2007 Service Pack 3Microsoft XML Core Services 5.0
(KB2687497)
Remote Code ExecutionCriticalNone

 

Non-Affected Software

Operating System
Microsoft MSXML Core Services 3.0 and Microsoft MSXML Core Services 6.0 on Windows 8 for 32-bit Systems
Microsoft MSXML Core Services 3.0 and Microsoft MSXML Core Services 6.0 on Windows 8 for 64-bit Systems
Microsoft MSXML Core Services 3.0 and Microsoft MSXML Core Services 6.0 on Windows Server 2012
Operating System (Server Core installation)
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012 (Server Core installation)
Software
Microsoft Office 2010 (32-bit editions)
Microsoft Office 2010 Service Pack 1 (32-bit editions)
Microsoft Office 2010 (64-bit editions)
Microsoft Office 2010 Service Pack 1 (64-bit editions)
Microsoft SharePoint Server 2010
Microsoft SharePoint Server 2010 Service Pack 1
Microsoft Groove Server 2010
Microsoft Visio 2010 (32-bit editions)
Microsoft Visio 2010 Service Pack 1 (32-bit editions)
Microsoft Visio 2010 (64-bit editions)
Microsoft Visio 2010 Service Pack 1 (64-bit editions)
Microsoft Visio Viewer 2010 and Microsoft Visio Viewer 2010 Service Pack 1
Microsoft Office Web Apps 2010
Microsoft Expression Web 3
Microsoft Expression Web 4
Microsoft Excel Viewer
Microsoft Visio Viewer 2010
Microsoft Visio Viewer 2010 Service Pack 1
Microsoft Works 9
Microsoft Office 2008 for Mac
Microsoft Office for Mac 2011

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

MSXML Uninitialized Memory Corruption Vulnerability - CVE-2012-1889

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:

  • Google Security Team for working with us on the MSXML Uninitialized Memory Corruption Vulnerability (CVE-2012-1889)
  • Qihoo 360 Security Center for reporting the MSXML Uninitialized Memory Corruption Vulnerability (CVE-2012-1889)

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 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 (July 10, 2012): Bulletin published.
  • V1.1 (July 31, 2012): Bulletin revised to announce a detection change in the Windows Vista packages for KB2719985 to correct a Windows Update reoffering issue. This is a detection change only. Customers who have already successfully updated their systems do not need to take any action.
  • V2.0 (August 14, 2012): Bulletin rereleased to offer the security updates for Microsoft XML Core Services 5.0 that were unavailable at the time of initial release. Customers running Microsoft XML Core Services 5.0 should apply the KB2687324, KB2596856, or KB2596679 update to be protected from the vulnerability described in this bulletin. Customers who have already successfully installed the updates originally offered on July 10, 2012 for Microsoft XML Core Services 3.0, Microsoft XML Core Services 4.0, and Microsoft XML Core Services 6.0 do not need to take any action. See the Update FAQ for details.
  • V2.1 (August 15, 2012): Corrected download links for Microsoft Groove Server 2007 and other Microsoft Office software. Added download links and update information for Microsoft Groove 2007. These are informational changes only. Customers who have already successfully updated their systems do not need to take any action.
  • V3.0 (October 9, 2012): Added Microsoft XML Core Services 4.0 when installed on supported editions of Windows 8 and Windows Server 2012 to affected software and announced a corresponding detection change for the KB2721691 update package. Customers who have installed Microsoft XML Core Services 4.0 on systems running Windows 8 or Windows Server 2012 need to install the KB2721691 update to be protected from the vulnerability described in this bulletin. See the update FAQ for details.
  • V3.1 (October 23, 2012): Added the KB2721691 update to the Bulletin FAQ that explains which updates are available for Windows 8 Release Preview and Windows Server 2012 Release Candidate.
  • V4.0 (December 11, 2012): Rereleased bulletin to replace the KB2687324 update with the KB2687627 update for Microsoft XML Core Services 5.0 when installed on Microsoft Office 2003 Service Pack 3, and to replace the KB2596679 update with the KB2687497 update for Microsoft XML Core Services 5.0 when installed with all affected editions of Microsoft Groove 2007, Microsoft Groove Server 2007, and Microsoft Office SharePoint Server 2007. See the update FAQ for details.
  • V4.1 (January 30, 2013): Clarified that customers with the KB2687324 and KB2596679 updates will be offered the KB2687627 and KB2687497 updates respectively for Microsoft XML Core Services 5.0. See the update FAQ for details.
  • V4.2 (April 26, 2013): Corrected update replacement. This is an informational change only. There were no changes to the security update files or detection logic.