Provide references for CVE-2013-4391.
Where can I find more information about CVE-2013-4391?
References are available at: https://bugzilla.redhat.com/show_bug.cgi?id=859051, https://security.gentoo.org/glsa/201612-34, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357, http://www.debian.org/security/2013/dsa-2777, http://www.openwall.com/lists/oss-security/2013/10/01/9, http://cgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517e.