Provide references for CVE-2011-4613.
Where can I find more information about CVE-2011-4613?
References are available at: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249, http://www.ubuntu.com/usn/USN-1349-1, http://www.debian.org/security/2011/dsa-2364.