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Category:   Application (Multimedia)  >   Windows Media Player Vendors:   Microsoft
Windows Media Player DVR Parsing Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1026406
SecurityTracker URL:  http://securitytracker.com/id/1026406
CVE Reference:   CVE-2011-3401   (Links to External Site)
Date:  Dec 13 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Windows Media Player. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted Microsoft Digital Video Recording ('.dvr-ms') file that, when loaded by the target user, will trigger a parsing error and execute arbitrary code on the target system. The code will run with the privileges of the target user.

An anonymous researcher reported this vulnerability via iDefense.

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued the following fixes:

Windows XP Media Center Edition 2005 Service Pack 3:

http://www.microsoft.com/downloads/details.aspx?familyid=03bc6446-7cf3-47c4-8ed1-a53a4d53a429

Windows XP Service Pack 3:

http://www.microsoft.com/downloads/details.aspx?familyid=d85091b5-69bb-4d0f-839a-a65cd94e2887

Windows XP Professional x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=7d1d1e9a-603c-4895-a69f-b61186a75ad5

Windows Vista Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=e9130fad-de8c-4be0-aea1-62cbaa310b76

Windows Vista x64 Edition Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=b7c4bf05-eb2d-48ac-a6df-8afd88e811d8

Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=b6e44069-dec5-48f6-8fc4-8ab375a10b4e

Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=f7997ab8-27e0-4714-845a-d237f4326587

A restart may be required.

The Microsoft advisory is available at:

http://technet.microsoft.com/en-us/security/bulletin/ms11-092

Vendor URL:  technet.microsoft.com/en-us/security/bulletin/ms11-092 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Windows (7), Windows (Vista), Windows (XP)

Message History:   None.


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