CVE-2024-32663

Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation

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).

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 1.12% Top 25%
Vendor Advisory github.com
Affected: OISF suricata
Published at:
Updated at:

References

Link Tags
https://github.com/OISF/suricata/security/advisories/GHSA-9jxm-qw9v-266r vendor advisory
https://github.com/OISF/suricata/commit/08d93f7c3762781b743f88f9fdc4389eb9c3eb64 patch
https://github.com/OISF/suricata/commit/c0af92295e833d1db29b184d63cd3b829451d7fd patch
https://github.com/OISF/suricata/commit/d24b37a103c04bb2667e449e080ba4c8e56bb019 patch
https://github.com/OISF/suricata/commit/e68ec4b227d19498f364a41eb25d3182f0383ca5 patch
https://redmine.openinfosecfoundation.org/issues/6892 issue tracking
https://redmine.openinfosecfoundation.org/issues/6900 issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-32663?
CVE-2024-32663 has been scored as a high severity vulnerability.
How to fix CVE-2024-32663?
To fix CVE-2024-32663, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-32663 being actively exploited in the wild?
It is possible that CVE-2024-32663 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-32663?
CVE-2024-32663 affects OISF suricata.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.