Apple iOS Passcode Lock Security Bypass Multiple Vulnerabilities

Multiple vulnerabilities have been identified in Apple iOS, which can be exploited by malicious people with physical access to bypass certain security restrictions.

1. A NULL pointer dereference error related to the emergency call button and the camera pane within the lock screen of the Passcode Lock component can be exploited to gain access to certain otherwise restricted functionality and e.g. call an arbitrary number.
2. An error within the Passcode Lock component can be exploited to gain access to the lock screen after having been disabled due to incorrect passcode attempts.
3. A race condition error in the Passcode Lock component can be exploited to gain access to the contact pane and e.g. call an arbitrary number from the contacts pane.