[USN-898-1] gnome-screensaver vulnerability

By | 2010/02/10

The following security announcement applies to gnome-screensaver. If you have gnome-screensaver installed, please see below for details on the vulnerability and instructions on patching your system:

It was discovered that gnome-screensaver did not correctly handle monitor
hotplugging. An attacker with physical access could cause gnome-screensaver
to crash and gain access to the locked session.

The above security vulnerabilities apply to the following Ubuntu releases:

  • Ubuntu 9.10

If you are have this utility installed on your Ubuntu system you’ll need to apply the security update to be protected. Please follow the steps below to ensure your system is properly patched:

Apply Updates

To apply the updates run the following command(s) within your Terminal:

sudo aptitude update
sudo aptitude safe-upgrade

After a standard system upgrade you need to restart your session to effect the necessary changes.