CVE-2013-5144 Information

Description

Passcode Lock in Apple iOS before 7.0.3 on iPhone devices allows physically proximate attackers to bypass an intended passcode requirement and dial arbitrary telephone numbers by tapping the emergency-call button during a certain notification and camera-pane state to trigger a NULL pointer dereference.

Reference

http://lists.apple.com/archives/security-announce/2013/Oct/msg00002.html