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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Windows OS Lets Remote Users Cause Arbitrary Code to Be Executed and Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1027039
SecurityTracker URL:  http://securitytracker.com/id/1027039
CVE Reference:   CVE-2011-3402, CVE-2012-0159, CVE-2012-0180, CVE-2012-0181, CVE-2012-1848   (Links to External Site)
Date:  May 8 2012
Impact:   Execution of arbitrary code via local system, Execution of arbitrary code via network, Root access via local system, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): XP SP3, 2003 SP2, Vista SP2, 2008 SP2, 7 SP1, 2008 R2 SP1; and prior service packs
Description:   Multiple vulnerabilities were reported in the Windows operating system. A remote user can cause arbitrary code to be executed on the target user's system. A local user can obtain elevated privileges on the target system.

A remote user can create a specially crafted TrueType font that, when loaded by the target user, will trigger a memory corruption error and execute arbitrary code on the target system [CVE-2011-3402, CVE-2012-0159]. The code will run with the privileges of the target user.

A local user can trigger a windows and messages handling flaw in the Windows kernel-mode driver (win32k.sys) to execute arbitrary code in the context of another process [CVE-2012-0180].

A local user can trigger a keyboard layout file processing error in the Windows kernel-mode driver (win32k.sys) to execute arbitrary code in the context of another process [CVE-2012-0181].

A local user can trigger a scrollbar calculation flaw in the Windows kernel-mode driver (win32k.sys) to execute arbitrary code in the context of another process [CVE-2012-1848].

Alin Rad Pop (via Tipping Point's Zero Day Initiative), Tarjei Mandt of Azimuth Security, Nicolas Economou of Core Security Technologies, Geoff McDonald of Symantec, and h4ckmp reported these vulnerabilities.

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.

A local user can obtain elevated privileges on the target system.

Solution:   The vendor has issued a fix.

A patch matrix is available in the vendor's advisory.

A restart is required.

The Microsoft advisory is available at:

http://technet.microsoft.com/en-us/security/bulletin/ms12-034

Vendor URL:  technet.microsoft.com/en-us/security/bulletin/ms12-034 (Links to External Site)
Cause:   Access control error
Underlying OS:  

Message History:   None.


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