CVE-2008-4228
The Passcode Lock feature in Apple iPhone OS 1.0 through 2.1 and iPhone OS for iPod touch 1.1 through 2.1 allows physically proximate attackers to leverage the emergency-call ability of locked devices to make a phone call to an arbitrary number.
Date published : 2008-11-25
http://lists.apple.com/archives/security-announce/2008/Nov/msg00002.html