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.
https://security.gentoo.org/glsa/201506-03
https://gitlab.com/gnutls/gnutls/commit/d6972be33264ecc49a86cd0958209cd7363af1e9
https://gitlab.com/gnutls/gnutls/commit/053ae65403216acdb0a4e78b25ad66ee9f444f02
http://www.ubuntu.com/usn/USN-2727-1
http://www.securitytracker.com/id/1033774
http://www.securityfocus.com/bid/74188
http://www.openwall.com/lists/oss-security/2015/04/16/6
http://www.openwall.com/lists/oss-security/2015/04/15/6
http://www.gnutls.org/security.html#GNUTLS-SA-2015-4
http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155101.html