XScreenSaver: Privilege escalation

XScreenSaver: Privilege escalation XScreenSaver allows local users to bypass authentication under certain configurations. xscreensaver 2007-05-13 2007-05-13: 01 176584 local 5.02 5.02

XScreenSaver is a widely used screen saver collection shipped on systems running the X11 Window System.

XScreenSaver incorrectly handles the results of the getpwuid() function in drivers/lock.c when using directory servers during a network outage.

A local user can crash XScreenSaver by preventing network connectivity if the system uses a remote directory service for credentials such as NIS or LDAP, which will unlock the screen.

There is no known workaround at this time.

All XScreenSaver users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-misc/xscreensaver-5.02"

CVE-2007-1859 jaervosz falco falco