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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.1135
         Vulnerability in Windows Media Encoder Could Allow Remote
                         Code Execution (2447961)
                             15 December 2010

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

Product:           Windows Media Encoder
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
                   Windows Vista
                   Windows Server 2008
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-3965  

Original Bulletin: 
   http://www.microsoft.com/technet/security/Bulletin/MS10-094.mspx

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Microsoft Security Bulletin MS10-094 - Important

Vulnerability in Windows Media Encoder Could Allow Remote Code Execution 
(2447961)

Version: 1.0

General Information

Executive Summary

  This security update resolves a publicly disclosed vulnerability in Windows 
  Media Encoder. The vulnerability could allow remote code execution if an 
  attacker convinces a user to open a legitimate Windows Media Profile (.prx) 
  file that is located in the same network directory as a specially crafted 
  library file. For an attack to be successful, a user must visit an untrusted 
  remote file system location or WebDAV share and open a document from this 
  location that is then loaded by a vulnerable application.

  This security update is rated Important for all supported editions of Windows
  XP, Windows Server 2003 (except Itanium), Windows Vista, and Windows Server 
  2008 (except Itanium). For more information, see the subsection, Affected and
  Non-Affected Software, in this section.

  The security update addresses the vulnerability by correcting the way the 
  Windows Media Encoder loads external libraries. For more information about the
  vulnerability, see the Frequently Asked Questions (FAQ) subsection for the 
  specific vulnerability entry under the next section, Vulnerability 
  Information.

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 Vista Service Pack 1
  Windows Vista Service Pack 2
  Windows Vista x64 Edition Service Pack 1
  Windows Vista x64 Edition Service Pack 2
  Windows Server 2008 for 32-bit Systems
  Windows Server 2008 for 32-bit Systems Service Pack 2
  Windows Server 2008 for x64-based Systems
  Windows Server 2008 for x64-based Systems Service Pack 2

Vulnerability Information

Insecure Library Loading Vulnerability - CVE-2010-3965

  A remote code execution vulnerability exists in the way that Microsoft 
  Windows handles the loading of DLL files. 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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The University of Queensland
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