Graphics Drivers in Apple OS X before 10.9.4 allows attackers to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via a 32-bit executable file for a crafted application.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-1457
https://code.google.com/p/google-security-research/issues/detail?id=20
http://www.securitytracker.com/id/1030505
http://support.apple.com/kb/HT6296
http://secunia.com/advisories/59475
http://archives.neohapsis.com/archives/bugtraq/2014-06/0172.html