Provide references for CVE-2013-4477.
Where can I find more information about CVE-2013-4477?
References are available at: http://www.openwall.com/lists/oss-security/2013/10/30/6, http://www.ubuntu.com/usn/USN-2034-1, http://rhn.redhat.com/errata/RHSA-2014-0113.html, https://bugs.launchpad.net/keystone/+bug/1242855.