Multiple vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious, local users to gain escalated privileges.

1) Some race condition errors within win32k.sys when handling certain objects in memory can be exploited to execute arbitrary code with kernel-mode privileges.

2) A race condition error within win32k.sys when handling certain objects in memory can be exploited to execute arbitrary code with kernel-mode privileges.

3) Some race condition errors within win32k.sys when handling certain objects in memory can be exploited to execute arbitrary code with kernel-mode privileges.

4) Some race condition errors within win32k.sys when handling certain objects in memory can be exploited to execute arbitrary code with kernel-mode privileges.

Solution
Apply updates.
Further details available to Secunia VIM customers

Provided and/or discovered by
The vendor credits:
1) Mateusz "j00ru" Jurczyk, Google and Tencent Security Team
2) Mateusz "j00ru" Jurczyk, Google
3) Gynvael Coldwind and Mateusz "j00ru" Jurczyk, Google
4) Mateusz "j00ru" Jurczyk, Google

Changelog
Further details available to Secunia VIM customers

Original Advisory
MS13-016 (KB2778344):
https://technet.microsoft.com/en-us/security/bulletin/ms13-016

Deep Links
Links available to Secunia VIM customers