Provide references for CVE-2011-4928.
Where can I find more information about CVE-2011-4928?
References are available at: http://www.openwall.com/lists/oss-security/2012/01/06/5, http://www.debian.org/security/2011/dsa-2261, http://www.openwall.com/lists/oss-security/2012/01/06/7, http://www.redmine.org/news/49.