High · published November 27, 2025
⚡ A NULL dereference can take down Suricata versions 8.0.0 to 8.0.1 when the entropy keyword and base64_data join forces — it’s like your coffee machine short-circuiting just when you need that caffeine fix! ☕️ Think of this vulnerability as a recipe that calls for a critical ingredient, but if it’s missing (like that NULL reference), the whole dish turns into a disaster. Just as a chef can’t serve undercooked food, Suricata can’t function properly without proper inputs. If exploited, this NULL dereference could crash the Suricata engine, making your network defenses momentarily blind. Imagine an entire security system going dark right when you need it most — absolutely devastating!
Think of this vulnerability as a recipe that calls for a critical ingredient, but if it’s missing (like that NULL reference), the whole dish turns into a disaster. Just as a chef can’t serve undercooked food, Suricata can’t function properly without proper inputs. This vulnerability arises when the entropy keyword is improperly used with base64_data, leading to a NULL dereference in Suricata versions 8.0.0 to 8.0.1. As a result, the engine can crash, leaving your defenses vulnerable during that time.
If exploited, this NULL dereference could crash the Suricata engine, making your network defenses momentarily blind. Imagine an entire security system going dark right when you need it most — absolutely devastating! To protect your infrastructure, upgrade Suricata to version 8.0.2 or later immediately. If an upgrade isn't feasible right away, consider disabling the rules that use entropy with base64_data as a temporary workaround. Keeping an eye on configurations can save you future headaches! You've got this! By taking these steps, you're not just fixing a bug; you’re becoming a security hero! 🦸♂️
| Product | Versions | Fixed in |
|---|---|---|
| oisf/suricata | ≥ 8.0.0, < 8.0.2 | 8.0.2 |