Provide references for CVE-2011-4588.
Where can I find more information about CVE-2011-4588?
References are available at: https://bugzilla.redhat.com/show_bug.cgi?id=761248, http://www.debian.org/security/2012/dsa-2421, http://moodle.org/mod/forum/discuss.php?d=191756, http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=3ab2851d2a59721445945d0706c58092e07e861e.