USN-2436-2: X.Org X server vulnerabilities
Ubuntu Security Notice USN-2436-2
9th December, 2014
xorg-server, xorg-server-lts-trusty vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
USN-2436-1 contained incomplete fixes for the X.Org X server.
Software description
- xorg-server - X.Org X11 server
- xorg-server-lts-trusty - Xorg X server - source files
Details
USN-2436-1 fixed vulnerabilities in the X.Org X server. Since publication,
additional fixes have been made available for these issues. This update
adds the additional fixes.
Original advisory details:
Ilja van Sprundel discovered a multitude of security issues in the X.Org X
server. An attacker able to connect to an X server, either locally or
remotely, could use these issues to cause the X server to crash or execute
arbitrary code resulting in possible privilege escalation.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 14.10:
- xserver-xorg-core 2:1.16.0-1ubuntu1.2
- Ubuntu 14.04 LTS:
- xserver-xorg-core 2:1.15.1-0ubuntu2.5
- Ubuntu 12.04 LTS:
- xserver-xorg-core 2:1.11.4-0ubuntu10.16
- xserver-xorg-core-lts-trusty 2:1.15.1-0ubuntu2~precise4
To update your system, please follow these instructions: http://bit.ly/1aJDvTw.
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
from Ubuntu Security Notices http://bit.ly/1B4KuEj