Buffer overflow in the dane_query_tlsa function in the DANE library (libdane) in GnuTLS 3.1.x before 3.1.15 and 3.2.x before 3.2.5 allows remote servers to cause a denial of service (memory corruption) via a response with more than four DANE entries.
http://www.openwall.com/lists/oss-security/2013/10/25/2
http://www.gnutls.org/security.html#GNUTLS-SA-2013-3
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/7050
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/7049