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
EPSS: 0.008 (52.3th percentile) — read the EPSS interpretation.
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.
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
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Mailing List)
- security-advisories@github.com (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.