D-Bus 1.3.0 through 1.6.x before 1.6.24 and 1.8.x before 1.8.8 allows local users to (1) cause a denial of service (prevention of new connections and connection drop) by queuing the maximum number of file descriptors or (2) cause a denial of service (disconnect) via multiple messages that combine to have more than the allowed number of file descriptors for a single sendmsg call.
https://bugs.freedesktop.org/show_bug.cgi?id=82820
http://www.ubuntu.com/usn/USN-2352-1
http://www.securitytracker.com/id/1030864
http://www.openwall.com/lists/oss-security/2014/09/16/9
http://www.mandriva.com/security/advisories?name=MDVSA-2015:176
http://www.debian.org/security/2014/dsa-3026
http://secunia.com/advisories/61378
http://lists.opensuse.org/opensuse-updates/2014-09/msg00049.html