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Vulnerability · Published Feb 26, 2024 · Assigned by GitHub_M

CVE-2024-23839Suricata http: heap use after free with http.request_header and http.response_header keywords

High 7.1

In plain English

A high-severity use-after-free in suricata from OISF. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.8%top 43.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13suricata1:7.0.3-1DEBIAN-CVE-2024-23839
Debian:14suricata1:7.0.3-1DEBIAN-CVE-2024-23839
Ubuntu:22.04:LTSsuricatano fix listedUBUNTU-CVE-2024-23839
Ubuntu:24.04:LTSsuricatano fix listedUBUNTU-CVE-2024-23839
Ubuntu:25.10suricatano fix listedUBUNTU-CVE-2024-23839
Ubuntu:26.04:LTSsuricatano fix listedUBUNTU-CVE-2024-23839
Ubuntu:26.10suricatano fix listedUBUNTU-CVE-2024-23839

Affected products (as reported)

VendorProductVersions
OISF suricata >= 7.0.0, < 7.0.3

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

References