Apple OS X before 10.10 allows remote attackers to cause a denial of service (NULL pointer dereference) via crafted ASN.1 data.
https://support.apple.com/kb/HT6535
https://exchange.xforce.ibmcloud.com/vulnerabilities/97624
http://www.securitytracker.com/id/1031063
http://www.securityfocus.com/bid/70625
http://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html