CVE-2024-32663: Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation
First published: Tue May 07 2024(Updated: )
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OISF Suricata | >=6.0.0<6.0.19 | |
| OISF Suricata | >=7.0.0<7.0.5 |
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Reference Links
- https://github.com/OISF/suricata/security/advisories/GHSA-9jxm-qw9v-266r
- https://github.com/OISF/suricata/commit/08d93f7c3762781b743f88f9fdc4389eb9c3eb64
- https://github.com/OISF/suricata/commit/c0af92295e833d1db29b184d63cd3b829451d7fd
- https://github.com/OISF/suricata/commit/d24b37a103c04bb2667e449e080ba4c8e56bb019
- https://github.com/OISF/suricata/commit/e68ec4b227d19498f364a41eb25d3182f0383ca5
- https://redmine.openinfosecfoundation.org/issues/6892
- https://redmine.openinfosecfoundation.org/issues/6900
Frequently Asked Questions
What is the severity of CVE-2024-32663?
CVE-2024-32663 has been classified as a moderate severity vulnerability due to its ability to cause excessive memory usage.
How do I fix CVE-2024-32663?
To mitigate CVE-2024-32663, upgrade to Suricata version 7.0.5 or 6.0.19 or later.
What versions of Suricata are affected by CVE-2024-32663?
CVE-2024-32663 affects Suricata versions prior to 7.0.5 and 6.0.19.
What type of vulnerability is CVE-2024-32663?
CVE-2024-32663 is a memory exhaustion vulnerability that can be triggered by specific HTTP/2 traffic.
Is CVE-2024-32663 specific to certain operating systems?
CVE-2024-32663 is not specific to any operating system but affects any system running the vulnerable versions of Suricata.
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