Provide references for CVE-2013-1977.
Where can I find more information about CVE-2013-1977?
References are available at: https://bugs.launchpad.net/devstack/+bug/1168252, http://www.openwall.com/lists/oss-security/2013/04/23/7, http://www.openwall.com/lists/oss-security/2013/04/19/2.