Buffer overflow in The Core Foundation framework (CoreFoundation.framework) in Mac OS X 10.2.8, 10.3.4, and 10.3.5 allows local users to execute arbitrary code via a certain environment variable.
https://exchange.xforce.ibmcloud.com/vulnerabilities/17295
http://www.securityfocus.com/bid/11136
http://www.securityfocus.com/advisories/7148
http://www.kb.cert.org/vuls/id/545446