CVE-2024-38536 — Suricata is a network Intrusion Detection System, Intrusion Prevention System an

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A memory allocation failure due to `http.memcap` being reached leads to a NULL-ptr reference leading to a crash. Upgrade to 7.0.6.

01What is this vulnerability?

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. A memory allocation failure due to `http.memcap` being reached leads to a NULL-ptr reference leading to a crash. Upgrade to 7.0.6.

02Affected products

Vendor	Product	Versions
OISF	suricata	< 7.0.6

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-07-11T14:54:32.547Z
• Last modified: 2024-08-02T04:12:25.271Z

09References

• github.com — https://github.com/OISF/suricata/security/advisories/GHSA-j32j-4w6g-94hh
• redmine.openinfosecfoundation.org — https://redmine.openinfosecfoundation.org/issues/7029
• redmine.openinfosecfoundation.org — https://redmine.openinfosecfoundation.org/issues/7033