What’s Vulnerable › Vulnerabilities

CVE-2024-24568: Suricata http2: header handling evasion

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-26 · updated 2026-06-17
• Weakness: CWE-284

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.3, the rules inspecting HTTP2 headers can get bypassed by crafted traffic. The vulnerability has been patched in 7.0.3.

Affected products

• Fedoraproject Fedora: 38, 39
• OISF suricata: from 7.0.0 before 7.0.3 — fixed in 7.0.3

How to fix

Upgrade to a fixed version: OISF suricata 7.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/OISF/suricata/commit/478a2a38f54e2ae235f8486bff87d7d66b6307f0
• https://github.com/OISF/suricata/security/advisories/GHSA-gv29-5hqw-5h8c
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GOCOBFUTIFHOP2PZOH4ENRFXRBHIRKK4/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXJIT7R53ZXROO3I256RFUWTIW4ECK6P/
• https://redmine.openinfosecfoundation.org/issues/6717
• https://github.com/OISF/suricata/commit/478a2a38f54e2ae235f8486bff87d7d66b6307f0
• https://github.com/OISF/suricata/security/advisories/GHSA-gv29-5hqw-5h8c
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GOCOBFUTIFHOP2PZOH4ENRFXRBHIRKK4/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXJIT7R53ZXROO3I256RFUWTIW4ECK6P/
• https://redmine.openinfosecfoundation.org/issues/6717

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