The kernel in Apple OS X before 10.9.5 allows local users to obtain sensitive address information and bypass the ASLR protection mechanism by leveraging predictability of the location of the CPU Global Descriptor Table.
https://exchange.xforce.ibmcloud.com/vulnerabilities/96064
https://euvd.enisa.europa.eu/vulnerability/EUVD-2014-4330
http://www.securitytracker.com/id/1030868