[CB-12341] Possible crash in [CDVUserAgentUtil releaseLock:]

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Fix Version/s: cordova-ios@4.4.0
• Component/s: cordova-ios

Environment

only tested on iOS 10.x, but would affect other versions also.

• Assignee: Shazron Abdullah
• Reporter: Ben Rigas
• Created: 10/Jan/17 21:06
• Updated: 23/Aug/18 06:52
• Resolved: 10/Jan/17 23:36

Description

There is a possibility of a crash when calling [CDVUserAgentUtil releaseLock:] with a nil pointer. The first check in this method dereferences the lockToken pointer without first checking that it is non-nil, it should be updated to check for nil before continuing.