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             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0026
         Vulnerabilities in Microsoft Data Access Components Could
                        Allow Remote Code Execution
                              12 January 2011

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

Product:           Microsoft Data Access Components 2.8
                   Microsoft Data Access Components 6.0
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-2011-0027 CVE-2011-0026 

Original Bulletin: 
   http://www.microsoft.com/technet/security/bulletin/MS11-002.mspx

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Microsoft Security Bulletin MS11-002 - Critical

Vulnerabilities in Microsoft Data Access Components Could Allow Remote Code
Execution (2451910)

   Published: January 11, 2011

   Version: 1.0

General Information

Executive Summary

   This security update resolves two privately reported vulnerabilities
   in Microsoft Data Access Components. The vulnerabilities could allow
   remote code execution if a user views a specially crafted Web page. An
   attacker who successfully exploited this vulnerability could gain the
   same user rights as the local 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
   Windows XP, Windows Vista, and Windows 7, and Important for all
   supported editions of Windows Server 2003, Windows Server 2008, and
   Windows Server 2008 R2. For more information, see the subsection,
   Affected and Non-Affected Software, in this section.

Affected Software

   Windows XP Service Pack 3
   Microsoft Data Access Components 2.8 Service Pack 1

   Windows XP Professional x64 Edition Service Pack 2
   Microsoft Data Access Components 2.8 Service Pack 2

   Windows Server 2003 Service Pack 2
   Microsoft Data Access Components 2.8 Service Pack 2

   Windows Server 2003 x64 Edition Service Pack 2
   Microsoft Data Access Components 2.8 Service Pack 2

   Windows Server 2003 with SP2 for Itanium-based Systems
   Microsoft Data Access Components 2.8 Service Pack 2

   Windows Vista Service Pack 1 and Windows Vista Service Pack 2
   Windows Data Access Components 6.0

   Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2
   Windows Data Access Components 6.0

   Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2
   Windows Data Access Components 6.0*

   Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2
   Windows Data Access Components 6.0*

   Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2
   Windows Data Access Components 6.0

   Windows 7 for 32-bit Systems
   Windows Data Access Components 6.0

   Windows 7 for x64-based Systems
   Windows Data Access Components 6.0

   Windows Server 2008 R2 for x64-based Systems
   Windows Data Access Components 6.0*

   Windows Server 2008 R2 for Itanium-based Systems
   Windows Data Access Components 6.0

Vulnerability Information

DSN Overflow Vulnerability - CVE-2011-0026

   A remote code execution vulnerability exists in the way that Microsoft
   Data Access Components validates third-party API usage. This
   vulnerability could allow code execution if a user visited a specially
   crafted Web page. If a user is logged on with administrative user
   rights, 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.

ADO Record Memory Vulnerability - CVE-2011-0027

   A remote code execution vulnerability exists in the way that Microsoft
   Data Access Components validates memory allocation. This vulnerability
   could allow code execution if a user visited a specially crafted Web
   page. If a user is logged on with administrative user rights, 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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