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             AUSCERT External Security Bulletin Redistribution

                              ESB-2009.1617.2
                 Security Enhancements for the Indeo Codec
                             14 December 2009

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

Product:           Indeo Codec
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows 2000
                   Windows Server 2003
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-4313 CVE-2009-4312 CVE-2009-4311
                   CVE-2009-4310 CVE-2009-4309 CVE-2009-4210

Original Bulletin: 
   http://www.microsoft.com/technet/security/advisory/954157.mspx

Comment: Note that this update is not part of the monthly updates from
         Microsoft but rather an additional security mitigation for known
         issues with the Indeo Codec.

Revision History:  December 14 2009: Added CVE References
                   December  9 2009: Initial Release

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Microsoft Security Advisory (954157)

Security Enhancements for the Indeo Codec

  Published: December 08, 2009

  Version: 1.0

General Information 

Executive Summary

  Microsoft is announcing the availability of an update that provides
  security mitigations to the Indeo codec on supported editions of Microsoft
  Windows 2000, Windows XP, and Windows Server 2003.

  The Indeo codec on systems running Microsoft Windows 2000, Windows XP, and 
  Windows Server 2003 could allow code remote code execution when opening 
  specially crafted media content. The update blocks the Indeo codec from being
  launched in Internet Explorer or Windows Media player. The update also
  removes the ability for this codec to be loaded when browsing the Internet
  with any other applications. By only allowing applications to use the
  Indeo codec when the media content is from the local system or from the
  intranet zone, and by preventing Internet Explorer and Windows Media Player
  from launching the codec at all, this update removes the most common remote
  attack vectors but still allows games or other applications that leverage
  the codec locally to continue to function.

  The update is available through automatic updating and from the Microsoft 
  Download Center. Customers who have automatic updating enabled will not need 
  to take any action because this security update will be downloaded and 
  installed automatically. For more information about this issue, including 
  download links for this non-security update, see Microsoft Knowledge Base 
  Article 954157.

  The Indeo codec may be used and may be required by certain applications in 
  multiple ways. The Indeo codec may be required when visiting legitimate Web  
  sites, and in corporate environment line-of-business applications. This is 
  likely to be a more common scenario for customers running older operating 
  systems. Therefore, this update is being offered to customers on older 
  operating systems automatically, but will still allow the codec to function
  in line-of-business application scenarios. On the other hand, customers who
  do not have a use for the codec may choose to take an additional step and 
  deregister the codec completely. Deregistering the codec would remove all 
  attack vectors that leverage the Indeo codec. See Microsoft Knowledge Base 
  Article 954157 for directions on how to deregister the codec.

  We encourage customers running supported editions of Microsoft Windows 2000, 
  Windows XP, and Windows 2003 to review and install this update or to 
  deregister the Indeo codec. By installing this update and deregistering the 
  codec on these older operating systems, customers will have the same 
  mitigations included in Windows Vista and Windows 7.

Affected Software

  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

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The University of Queensland
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