Unspecified vulnerability in Passcode Lock in Apple iPhone 1.0 through 1.1.2 allows users with physical access to execute applications without entering the passcode via vectors related to emergency calls.
https://exchange.xforce.ibmcloud.com/vulnerabilities/39701
http://www.vupen.com/english/advisories/2008/0147
http://www.securitytracker.com/id?1019219
http://www.securityfocus.com/bid/27297
http://secunia.com/advisories/28497
http://lists.apple.com/archives/security-announce/2008/Jan/msg00000.html