D-BUS (dbus) before 0.22 does not properly restrict access to a socket, if the socket address is known, which allows local users to listen or send arbitrary messages on another user’s per-user session bus via that socket.
secunia.com/advisories/14119
secunia.com/advisories/15638
secunia.com/advisories/15833
secunia.com/advisories/15844
securitytracker.com/id?1013075
www.auscert.org.au/render.html?it=5156
www.mandriva.com/security/advisories?name=MDKSA-2005:105
www.redhat.com/support/errata/RHSA-2005-102.html
www.securityfocus.com/bid/12435
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10973
usn.ubuntu.com/144-1/