MS Windows Client/Server Run-time Subsystem Privilege Escalation Vulnerability (2646524)

Summary
This host is missing an important security update according to Microsoft Bulletin MS12-003.
Impact
Successful exploitation could allow attacker to execute arbitrary code with system-level privileges. Successfully exploiting this issue will result in the complete compromise of affected computers. Impact Level: System
Solution
Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link, http://technet.microsoft.com/en-us/security/bulletin/ms12-003
Insight
The flaw is due to an error in the Client/Server Run-time Subsystem (CSRSS) when processing specially crafted sequences of unicode characters. NOTE : This vulnerability can only be exploited on systems configured with a Chinese, Japanese or Korean system locale.
Affected
Microsoft Windows XP Service Pack 3 and prior. Microsoft Windows 2003 Service Pack 2 and prior. Microsoft Windows Vista Service Pack 2 and prior. Microsoft Windows Server 2008 Service Pack 2 and prior.
References