Sandbox in Apple OS X before 10.10 allows attackers to write to the sandbox-profile cache via a sandboxed app that includes a com.apple.sandbox segment in a path.
https://exchange.xforce.ibmcloud.com/vulnerabilities/100522
http://www.securitytracker.com/id/1031650
http://support.apple.com/HT204244
http://lists.apple.com/archives/security-announce/2015/Jan/msg00003.html