MS Windows Client/Server Run-time Subsystem Privilege Escalation Vulnerability (2790113)

Summary
This host is missing an important security update according to Microsoft Bulletin MS13-019.
Impact
Successful exploitation will allow attackers to gain escalated privileges and execute the code. 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/ms13-019
Insight
The flaw is due to an error in the Client/Server Run-time Subsystem (CSRSS) when handling the reference counter for certain objects in memory and can be execute code with escalated privileges.
Affected
Microsoft Windows 7 x32/x64 Edition Service Pack 1 and prior Microsoft Windows Server 2008 R2 Edition Service Pack 1 and prior
References