Ubuntu 1803-1: X.Org X server vulnerability
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 12.10: xserver-xorg-core 2:1.13.0-0ubuntu6.2 Ubuntu 12.04 LTS: xserver-xorg-core 2:1.11.4-0ubuntu10.13 xserver-xorg-core-lts-quantal 2:1.13.0-0ubuntu6.1~precise3 Ubuntu 11.10: xserver-xorg-core 2:1.10.4-1ubuntu4.5 Ubuntu 10.04 LTS: xserver-xorg-core 2:1.7.6-2ubuntu7.12 After a standard system update you need to restart your session to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-1803-1
CVE-2013-1940
Package Information
https://launchpad.net/ubuntu/+source/xorg-server/2:1.13.0-0ubuntu6.2 https://launchpad.net/ubuntu/+source/xorg-server/2:1.11.4-0ubuntu10.13 https://launchpad.net/ubuntu/+source/xorg-server-lts-quantal/2:1.13.0-0ubuntu6.1~precise3 https://launchpad.net/ubuntu/+source/xorg-server/2:1.10.4-1ubuntu4.5 https://launchpad.net/ubuntu/+source/xorg-server/2:1.7.6-2ubuntu7.12