Provide references for CVE-2013-6491.
Where can I find more information about CVE-2013-6491?
References are available at: https://bugs.launchpad.net/oslo/+bug/1158807, https://bugzilla.redhat.com/show_bug.cgi?id=996766, http://www.ubuntu.com/usn/USN-2247-1, http://rhn.redhat.com/errata/RHSA-2014-0112.html.