CVE-2007-6276
The accept_connections function in the virtual private network daemon (vpnd) in Apple Mac OS X 10.5 before 10.5.4 allows remote attackers to cause a denial of service (divide-by-zero error and daemon crash) via a crafted load balancing packet to UDP port 4112.
Date published : 2007-12-07
http://lists.apple.com/archives/security-announce/2008//Jun/msg00002.html