Race condition in NSXML in Foundation for Apple Mac OS X 10.4.11 allows context-dependent attackers to execute arbitrary code via a crafted XML file, related to "error handling logic."
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.