gnome-screensaver before 2.28.2 allows physically proximate attackers to bypass screen locking and access an unattended workstation by moving the mouse position to an external monitor and then disconnecting that monitor.
openSUSE 11.2 SUSE Linux Enterprise Server 11 SP1 SUSE Linux Enterprise Server 11 SP2 SUSE Linux Enterprise Server 11 SP3 SUSE Linux Enterprise Server 11 SP4