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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.0511
 Vulnerabilities in Media Decompression Could Allow Remote Code Execution
                                9 June 2010

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows 2000
                   Windows XP
                   Windows Vista
                   Windows 7
                   Windows Server 2003
                   Windows Server 2008
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-1880 CVE-2010-1879 

Original Bulletin: 
   http://www.microsoft.com/technet/security/Bulletin/MS10-033.mspx

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Microsoft Security Bulletin MS10-033 - Critical

Vulnerabilities in Media Decompression Could Allow Remote Code Execution
(979902)

Version: 1.0

General Information

Executive Summary

  This security update resolves two privately reported vulnerabilities in
  Microsoft Windows. These vulnerabilities could allow remote code execution
  if a user opens a specially crafted media file or receives specially crafted
  streaming content from a Web site or any application that delivers Web
  content. An attacker who successfully exploited these vulnerabilities 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 Quartz.dll (DirectShow) on
  Microsoft Windows 2000, Windows XP, Windows Server 2003, Windows Vista,
  and Windows Server 2008; Critical for Windows Media Format Runtime on
  Microsoft Windows 2000, Windows XP, and Windows Server 2003; Critical
  for Asycfilt.dll (COM component) on Microsoft Windows 2000, Windows XP,
  Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and
  Windows Server 2008 R2; and Important for Windows Media Encoder 9 x86
  and x64 on Microsoft Windows 2000, Windows XP, Windows Server 2003,
  Windows Vista, and Windows Server 2008. For more information, see the
  subsection, Affected and Non-Affected Software, in this section.

  The security update addresses the vulnerabilities by modifying the way
  that Windows parses media 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.

Affected Software

  Microsoft Windows 2000 Service Pack 4
  Microsoft Windows 2000 Service Pack 4
  Windows XP Service Pack 2 and 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 1 and Windows Vista Service Pack 2
  Windows Vista x64 Edition Service Pack 1 and Windows Vista x64
    Edition Service Pack 2
  Windows Server 2008 for 32-bit Systems and Windows Server 2008
    for 32-bit Systems Service Pack 2
  Windows Server 2008 for x64-based Systems and Windows Server 2008 for
    x64-based Systems Service Pack 2
  Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for
    Itanium-based Systems Service Pack 2
  Windows 7 for 32-bit Systems
  Windows 7 for x64-based Systems
  Windows Server 2008 R2
  Windows Server 2008 R2 for Itanium-based Systems

Vulnerability Information

Media Decompression Vulnerability - CVE-2010-1879

  A remote code execution vulnerability exists in the way that Microsoft
  Windows handles media files. This vulnerability could allow remote code
  execution if a user opened a specially crafted  media file. 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.

MJPEG Media Decompression Vulnerability - CVE-2010-1880

  A remote code execution vulnerability exists in the way that Microsoft
  Windows handles media files. This vulnerability could allow remote code
  execution if a user opened a specially crafted file. 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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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

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