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             AUSCERT External Security Bulletin Redistribution

       Vulnerability in Windows Movie Maker Could Allow Remote Code
                            Execution (2424434)
                             15 December 2010


        AusCERT Security Bulletin Summary

Product:           Windows Movie Maker 2.6
Publisher:         Microsoft
Operating System:  Windows Vista
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2010-3967  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Microsoft Security Bulletin MS10-093 - Important

Vulnerability in Windows Movie Maker Could Allow Remote Code Execution 

Version: 1.0

General Information

Executive Summary

  This security update resolves a publicly disclosed vulnerability in Windows
  Movie Maker. The vulnerability could allow remote code execution if an 
  attacker convinces a user to open a legitimate Windows Movie Maker 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 Windows Movie Maker 2.6 on all
  supported editions of Windows Vista. For more information, see the subsection,
  Affected and Non-Affected Software, in this section.

  The security update addresses the vulnerability by correcting the way Windows
  Movie Maker 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 

Affected Software

  Windows Vista Service Pack 1
  Windows Vista Service Pack 2
  Windows Vista x64 Edition Service Pack 1
  Windows Vista x64 Edition Service Pack 2

Vulnerability Information

Insecure Library Loading Vulnerability - CVE-2010-3967

  A remote code execution vulnerability exists in the way that Windows Movie
  Maker 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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