Integer overflow in the fatfile_getarch2 in Apple Mac OS X allows local users to cause a denial of service and possibly execute arbitrary code via a crafted Mach-O Universal program that triggers memory corruption.
https://exchange.xforce.ibmcloud.com/vulnerabilities/30547
http://www.vupen.com/english/advisories/2007/0930
http://www.vupen.com/english/advisories/2006/4714
http://www.us-cert.gov/cas/techalerts/TA07-072A.html
http://www.securitytracker.com/id?1017751
http://www.securityfocus.com/bid/21291
http://secunia.com/advisories/24479
http://secunia.com/advisories/23088
http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html