In Suricata before 4.x, it was possible to trigger lots of redundant checks on the content of crafted network traffic with a certain signature, because of DetectEngineContentInspection in detect-engine-content-inspection.c. The search engine doesnt stop when it should after no match is found; instead, it stops only upon reaching inspection-recursion-limit (3000 by default).
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Suricata | Openinfosecfoundation | * | 3.2.4 (including) |