Race condition in the initialization routine in blued in Bluetooth in Apple Mac OS X before 10.7.4 allows local users to gain privileges via vectors involving a temporary file.
http://www.securityfocus.com/bid/53456
http://www.securityfocus.com/bid/53445
http://support.apple.com/kb/HT5281
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html