Off-by-one error in the Libsystem strnstr API in libc on Apple Mac OS X 10.4.11 allows context-dependent attackers to cause a denial of service (crash) via crafted arguments that trigger a buffer over-read.
docs.info.apple.com/article.html?artnum=307562
lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
secunia.com/advisories/29420
www.securityfocus.com/bid/28304
www.securityfocus.com/bid/28374
www.securitytracker.com/id?1019661
www.us-cert.gov/cas/techalerts/TA08-079A.html
www.vupen.com/english/advisories/2008/0924/references