Ubuntu Update for xorg-server USN-2500-1

Summary
Check the version of xorg-server
Solution
Please Install the Updated Packages.
Insight
Olivier Fourdan discovered that the X.Org X server incorrectly handled XkbSetGeometry requests resulting in an information leak. An attacker able to connect to an X server, either locally or remotely, could use this issue to possibly obtain sensitive information. (CVE-2015-0255) It was discovered that the X.Org X server incorrectly handled certain trapezoids. An attacker able to connect to an X server, either locally or remotely, could use this issue to possibly crash the server. This issue only affected Ubuntu 12.04 LTS. (CVE-2013-6424)
Affected
xorg-server on Ubuntu 14.10 , Ubuntu 14.04 LTS , Ubuntu 12.04 LTS
Detection
Get the installed version with the help of detect NVT and check if the version is vulnerable or not.
References