Race condition in the IP logging feature in Cisco Intrusion Prevention System (IPS) Software 7.1(7)E4 and earlier allows remote attackers to cause a denial of service (device reload) via crafted IP traffic that matches a problematic rule, aka Bug ID CSCud82085.
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.