Use After Free in Oisf Suricata
CVE-2024-23839
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.3, specially crafted traffic can cause a heap use after free if the ruleset uses the http.request_header or http.response_header keyword. The vulnerability has been patched in 7.0.3. To work around the vulnerability, avoid the http.request_header and http.response_header keywords.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Oisf Suricata — versions >= 7.0.0, < 7.0.3
- Fedoraproject Fedora — versions 38, 39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/OISF/suricata/security/advisories/GHSA-qxj6-hr2p-mmc7 (Mitigation, Vendor Advisory)
- github.com/OISF/suricata/commit/cd731fcaf42e5f7078c9be643bfa0cee2ad53e8f (Patch)
- redmine.openinfosecfoundation.org/issues/6657 (Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
Frequently asked questions
- What is CVE-2024-23839?
- CVE-2024-23839 is a high-severity vulnerability in Oisf Suricata, classified under Use After Free. CVSS score: 7.1/10. Published 2024-02-26.
- How severe is CVE-2024-23839?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2024-23839 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.