CVE-2024-32663

HIGH
Published May 7, 2024 Modified Nov 3, 2025 CWE-400 CWE-770

Description

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).

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption
CWE-770 CWE-770

Affected Products

Vendor Product
oisf suricata
oisf suricata

References

Advisories & Patches

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://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://github.com/OISF/suricata/security/advisories/GHSA-9jxm-qw9v-266r

Frequently Asked Questions

What is CVE-2024-32663? +
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). It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2024-32663? +
CVE-2024-32663 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-32663? +
CVE-2024-32663 affects products from oisf, specifically: suricata. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-32663? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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