Passcode Lock in Apple iOS before 7 does not properly manage the lock state, which allows physically proximate attackers to bypass an intended passcode requirement by leveraging a race condition involving phone calls and ejection of a SIM card.
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Link | Tags |
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http://secunia.com/advisories/54886 | third party advisory |
http://support.apple.com/kb/HT5934 | vendor advisory |
http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html | vendor advisory |