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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0655
         Vulnerability in Microsoft XML Core Services Could Allow
                      Remote Code Execution (2722479)
                               10 July 2012

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Microsoft Windows
                   Microsoft Office 2003
                   Microsoft Office 2007
                   Microsoft Expression Web
                   Microsoft Office SharePoint Server 2007
                   Microsoft Groove Server 2007
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
                   Windows Vista
                   Windows Server 2008
                   Windows 7
                   Windows Server 2008 R2
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-1889  

Reference:         ESB-2012.0539

Original Bulletin: 
   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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