CVE-2024-32663
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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).
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.96% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-770
- Affected
- oisf/suricata
- Source
- security-advisories@github.com
References
- https://github.com/OISF/suricata/commit/08d93f7c3762781b743f88f9fdc4389eb9c3eb64Patch
- https://github.com/OISF/suricata/commit/c0af92295e833d1db29b184d63cd3b829451d7fdPatch
- https://github.com/OISF/suricata/commit/d24b37a103c04bb2667e449e080ba4c8e56bb019Patch
- https://github.com/OISF/suricata/commit/e68ec4b227d19498f364a41eb25d3182f0383ca5Patch
- https://github.com/OISF/suricata/security/advisories/GHSA-9jxm-qw9v-266rVendor Advisory
- https://redmine.openinfosecfoundation.org/issues/6892Issue Tracking
- https://redmine.openinfosecfoundation.org/issues/6900Issue Tracking
- https://github.com/OISF/suricata/commit/08d93f7c3762781b743f88f9fdc4389eb9c3eb64Patch
- https://github.com/OISF/suricata/commit/c0af92295e833d1db29b184d63cd3b829451d7fdPatch
- https://github.com/OISF/suricata/commit/d24b37a103c04bb2667e449e080ba4c8e56bb019Patch
- https://github.com/OISF/suricata/commit/e68ec4b227d19498f364a41eb25d3182f0383ca5Patch
- https://github.com/OISF/suricata/security/advisories/GHSA-9jxm-qw9v-266rVendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00029.html
- https://redmine.openinfosecfoundation.org/issues/6892Issue Tracking
- https://redmine.openinfosecfoundation.org/issues/6900Issue Tracking
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.