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                             CERT-Renater

                  Note d'Information No. 2012/VULN266
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DATE                :  11/07/2012

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Windows XP, Windows Vista, Windows 7,
                      Windows Server 2003, Windows Server 2008
                     running Microsoft XML Core Services,
                      Microsoft Office versions 2003, 2007,
                      Microsoft Office Word Viewer,
                      Microsoft Office Compatibility Pack,
                      Microsoft Expression Web,
                      Microsoft Office SharePoint Server version 2007,
                      Microsoft Groove Server version 2007.

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KB2722479
http://technet.microsoft.com/en-us/security/bulletin/MS12-043
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Microsoft Security Bulletin MS12-043 - Critical Vulnerability in
Microsoft XML Core Services Could Allow Remote Code
Execution (2722479)

Published Date: July 10, 2012

Version: 1.0

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, 4.0, and 6.0 on all supported editions of Windows XP, Windows
Vista, and Windows 7 and is rated Moderate on all supported editions of
Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2; it
is also rated Critical for Microsoft XML Core Services 5.0 for 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, and
Microsoft Groove Server 2007. For more information, see the subsection,
Affected and Non-Affected Software, in this section.

Affected Software

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Microsoft Office 2003 Service Pack 3
Microsoft Office 2007 Service Pack 2
Microsoft Office 2007 Service Pack 3
Microsoft Expression Web Service Pack 1
Microsoft Expression Web 2
Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 3 (32-bit editions)
Microsoft Office SharePoint Server 2007 Service Pack 3 (64-bit editions)
Microsoft Groove Server 2007 Service Pack 2
Microsoft Groove Server 2007 Service Pack 3

Vulnerability Information

MSXML Uninitialized Memory Corruption Vulnerability - CVE-2012-1889

A remote code execution vulnerability exists in the way that Microsoft
XML Core Services handles objects in memory. The vulnerability could
allow remote code execution if a user views a website that contains
specially crafted content. 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. 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.

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