IOThunderboltFamily in Apple OS X before 10.11.2 allows local users to cause a denial of service (NULL pointer dereference) via an unspecified userclient type.Referenceshttps://support.apple.com/HT205637http://www.securitytracker.com/id/1034344http://lists.apple.com/archives/security-announce/2015/Dec/msg00005.html
