Provide references for CVE-2016-4021.
Where can I find more information about CVE-2016-4021?
References are available at: http://seclists.org/bugtraq/2016/Apr/99, https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2016-030.txt, http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184689.html, http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183750.html, http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184617.html, https://github.com/kazu-yamamoto/pgpdump/pull/16.