Ubuntu: 1803-1 Moderate: X.Org Server Keystroke Capture

ubuntu

April 17, 2013

The X server could be made to reveal keystrokes of other users.

Summary

The X server could be made to reveal keystrokes of other users.

Software Description:

- xorg-server: X.Org X server

- xorg-server-lts-quantal: X.Org X server

Details:

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.

Topics Covered

security advisory moderate severity local attack ubuntu xorg-server keystroke capture

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.