Double free vulnerability in lib/x509/x509_ext.c in GnuTLS before 3.3.14 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted CRL distribution point.<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-2015-3308