A security issue affects the following Ubuntu releases:
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
After a standard system upgrade you need to restart your session to effect
the necessary changes.
It was discovered that gnome-screensaver did not always re-enable itself
after applications requested it to ignore idle timers. This may result in the
screen not being automatically locked after the inactivity timeout is
reached, permitting an attacker with physical access to gain access to an