gnutls_cipher.c in libgnutls in GnuTLS before 2.12.17 and 3.x before 3.0.15 does not properly handle data encrypted with a block cipher, which allows remote attackers to cause a denial of service (heap memory corruption and application crash) via a crafted record, as demonstrated by a crafted GenericBlockCipher structure.
https://bugzilla.redhat.com/show_bug.cgi?id=805432
http://www.ubuntu.com/usn/USN-1418-1
http://www.securitytracker.com/id?1026828
http://www.securityfocus.com/bid/52667
http://www.openwall.com/lists/oss-security/2012/03/21/5
http://www.openwall.com/lists/oss-security/2012/03/21/4
http://www.mandriva.com/security/advisories?name=MDVSA-2012:040
http://www.gnu.org/software/gnutls/security.html
http://www.debian.org/security/2012/dsa-2441
http://secunia.com/advisories/57260
http://secunia.com/advisories/48712
http://secunia.com/advisories/48596
http://secunia.com/advisories/48511
http://secunia.com/advisories/48488
http://rhn.redhat.com/errata/RHSA-2012-0531.html
http://rhn.redhat.com/errata/RHSA-2012-0488.html
http://rhn.redhat.com/errata/RHSA-2012-0429.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-March/076496.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/077071.html
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5912
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5910
http://archives.neohapsis.com/archives/bugtraq/2012-03/0099.html