The X.Org X server could be made to crash if a specially crafted input device was added.
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.
11 July 2012
A security issue affects these releases of Ubuntu and its derivatives:
The X.Org X server could be made to crash if a specially crafted input device was added.
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 versions:
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.
Vulmon