CVE-2007-6359
The cs_validate_page function in bsd/kern/ubc_subr.c in the xnu kernel 1228.0 and earlier in Apple Mac OS X 10.5.1 allows local users to cause a denial of service (failed assertion and system crash) via a crafted signed Mach-O binary that causes the hashes function to return NULL.
Date published : 2007-12-14
http://lists.apple.com/archives/security-announce/2008//May/msg00001.html