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Category:   Application (Generic)  >   Microsoft Word Vendors:   Microsoft
Microsoft Word RTF Parsing Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1027852
SecurityTracker URL:  http://securitytracker.com/id/1027852
CVE Reference:   CVE-2012-2539   (Links to External Site)
Date:  Dec 11 2012
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2003 SP3, 2007 SP2, 2007 SP3, 2010 SP1
Description:   A vulnerability was reported in Microsoft Word. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted RTF file that, when loaded by the target user, will trigger a memory corruption error related to the 'listoverridecount' parameter and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Microsoft Word Viewer and Microsoft Office Compatibility Pack SP2 and SP3 are also affected.

Microsoft SharePoint Server 2010 SP1 and Microsoft Office Web Apps 2010 SP1 are also affected.

An anonymous researcher reported this vulnerability via Beyond Security's SecuriTeam Secure Disclosure program.

Impact:   A remote user can create an RTF 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:

Microsoft Word 2003 Service Pack 3:

http://www.microsoft.com/downloads/details.aspx?familyid=6947d500-f197-4001-bb39-1c4221af1b36

Microsoft Word 2007 Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=52aad8a5-14d9-4c02-828a-5c1164a01f27

Microsoft Word 2007 Service Pack 3:

http://www.microsoft.com/downloads/details.aspx?familyid=52aad8a5-14d9-4c02-828a-5c1164a01f27

Microsoft Word 2010 Service Pack 1 (32-bit editions):

http://www.microsoft.com/downloads/details.aspx?familyid=68c69b37-c544-4f24-8589-4212b868dd69

Microsoft Word 2010 Service Pack 1 (64-bit editions):

http://www.microsoft.com/downloads/details.aspx?familyid=9d776c2b-1a9a-4ccb-9e76-dd2cb0f9a80d

Microsoft Word Viewer:

http://www.microsoft.com/downloads/details.aspx?familyid=4ccaabd9-5128-4505-ba2f-20bcf02b97ec

Microsoft Office Compatibility Pack Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?familyid=c82de87d-3457-423e-9bfc-ec3f950049e7

Microsoft Office Compatibility Pack Service Pack 3:

http://www.microsoft.com/downloads/details.aspx?familyid=c82de87d-3457-423e-9bfc-ec3f950049e7

Word Automation Services:

http://www.microsoft.com/downloads/details.aspx?familyid=62007dcd-80db-42e4-8478-9e81f89cab98

Microsoft Office Web Apps 2010 Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?familyid=c98d8ef3-e9a8-4e7c-9e0a-02e192bab39c

A restart may be required.

The Microsoft advisory is available at:

http://technet.microsoft.com/en-us/security/bulletin/ms12-079

Vendor URL:  technet.microsoft.com/en-us/security/bulletin/ms12-079 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


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