USN-1803-1: X.Org X server vulnerability
17 April 2013
The X server could be made to reveal keystrokes of other users.
It was discovered that the X.Org X server did not properly clear input
events in certain circumstances. A local attacker with physical access
could use this flaw to capture keystrokes.
The problem can be corrected by updating your system to the following package versions:
After a standard system update you need to restart your session to make
all the necessary changes.