fb_lock_mgr in Firebird 1.5 uses weak permissions (0666) for the semaphore array, which allows local users to cause a denial of service (blocked query processing) by locking semaphores.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firebird | Firebirdsql | 1.5 (including) | 1.5 (including) |