Race condition in the NSURLConnection cache management functionality in Foundation for Apple Mac OS X 10.4.11 allows remote attackers to execute arbitrary code via unspecified manipulations that cause messages to be sent to a deallocated object.
Concurrent Execution using Shared Resource with Improper Synchronization 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.