Double free vulnerability in GnuTLS before 3.3.17 and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service via a long DistinguishedName (DN) entry in a certificate.<a href=http://cwe.mitre.org/data/definitions/415.html>CWE-415: Double Free</a> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-6251