Ubuntu Security Notice USN-1502-1
11th July, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
The X.Org X server could be made to crash if a specially crafted input device was added.
- xorg-server - X.Org X server
Ken Mixter discovered a format string vulnerability in the
LogVHdrMessageVerb function when handling input device names. This
could allow a local attacker to cause a denial of service or possibly
execute arbitrary code.
The default compiler options for the affected release should reduce
the vulnerability to a denial of service.
The problem can be corrected by updating your system to the following package version:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make
all the necessary changes.