The gnutls_x509_dn_oid_name function in lib/x509/common.c in GnuTLS 3.0 before 3.1.20 and 3.2.x before 3.2.10 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted X.509 certificate, related to a missing LDAP description for an OID when printing the DN.
https://www.gitorious.org/gnutls/gnutls/commit/d3648ebb04b650e6d20a2ec1fb839256b30b9fc6
https://bugzilla.redhat.com/show_bug.cgi?id=1101734
http://secunia.com/advisories/59086
http://rhn.redhat.com/errata/RHSA-2014-0684.html
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00007.html
http://lists.gnutls.org/pipermail/gnutls-help/2014-January/003327.html
http://lists.gnutls.org/pipermail/gnutls-help/2014-January/003326.html