The kernel in Apple Mac OS X before 10.5.6 allows local users to cause a denial of service (infinite loop and system halt) by running an application that is dynamically linked to libraries on an NFS server, related to occurrence of an exception in this application.
http://www.vupen.com/english/advisories/2008/3444
http://www.us-cert.gov/cas/techalerts/TA08-350A.html
http://www.securitytracker.com/id?1021404
http://www.securityfocus.com/bid/32873
http://www.securityfocus.com/bid/32839
http://support.apple.com/kb/HT3338
http://secunia.com/advisories/33179
http://lists.apple.com/archives/security-announce//2008//Dec/msg00000.html