The _gnutls_ecc_ansi_x963_export function in gnutls_ecc.c in GnuTLS 3.x before 3.1.28, 3.2.x before 3.2.20, and 3.3.x before 3.3.10 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted (1) Elliptic Curve Cryptography (ECC) certificate or (2) certificate signing requests (CSR), related to generating key IDs.
https://bugzilla.redhat.com/show_bug.cgi?id=1161443
http://www.ubuntu.com/usn/USN-2403-1
http://secunia.com/advisories/62294
http://secunia.com/advisories/62284
http://secunia.com/advisories/59991
http://rhn.redhat.com/errata/RHSA-2014-1846.html
http://lists.opensuse.org/opensuse-updates/2014-11/msg00084.html