MS Windows Ancillary Function Driver Privilege Elevation Vulnerabilities (2645640)

Summary
This host is missing an important security update according to Microsoft Bulletin MS12-009.
Impact
Successful exploitation could allow elevation of privilege if an attacker logs on to a user's system and runs a specially crafted application. Impact Level: System/Application
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/ms12-009
Insight
The flaws are caused due an error in Ancillary Function Driver (AFD) which does not properly validate input passed from user mode to the Windows kernel.
Affected
Microsoft Windows 2K3 Service Pack 2 and prior.
References