The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted certificate.Referenceshttps://security.gentoo.org/glsa/201509-04http://www.securitytracker.com/id/1032246http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158225.htmlhttps://access.redhat.com/errata/RHSA-2017:1860http://seclists.org/fulldisclosure/2015/Apr/109http://www.debian.org/security/2015/dsa-3256https://lists.gnu.org/archive/html/help-libtasn1/2015-04/msg00000.htmlhttp://lists.opensuse.org/opensuse-updates/2016-06/msg00047.htmlhttp://www.mandriva.com/security/advisories?name=MDVSA-2015:232http://lists.opensuse.org/opensuse-updates/2015-08/msg00014.htmlhttp://packetstormsecurity.com/files/131711/libtasn1-Heap-Overflow.htmlhttp://www.securityfocus.com/bid/74419http://lists.opensuse.org/opensuse-updates/2016-06/msg00097.htmlhttp://www.ubuntu.com/usn/USN-2604-1
