CVE-2013-4326 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4326): RealtimeKit (aka rtkit) 0.5 does not properly use D-Bus for communication with a polkit authority, which allows local users to bypass intended access restrictions by leveraging a PolkitUnixProcess PolkitSubject race condition via a (1) setuid process or (2) pkexec process, a related issue to CVE-2013-4288. https://bugzilla.redhat.com/attachment.cgi?id=796255 is the Red Hat patch for this issue.
My mistake, I didn't realize that we never had this version. Closing.
Looks strange to me that all distributions are applying the patch to 0.11 version too for fixing this bug :/, anyway, I have just filled bug 533012 as it also fixes a bug with current systemd version