Format string vulnerability in the CF_syslog function launchd in Apple Mac OS X 10.4 up to 10.4.6 allows local users to execute arbitrary code via format string specifiers that are not properly handled in a syslog call in the logging facility, as demonstrated by using a crafted plist file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27479
http://www.vupen.com/english/advisories/2006/2566
http://www.securityfocus.com/bid/18724
http://www.securityfocus.com/bid/18686
http://www.securityfocus.com/archive/1/438699/100/0/threaded
http://securitytracker.com/id?1016397
http://secunia.com/advisories/20877
http://lists.apple.com/archives/security-announce/2006/Jun/msg00000.html