CVE-2024-55626: 
Suricata vulnerability analysis and mitigation

Suricata, a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine, was found to contain a buffer overflow vulnerability (CVE-2024-55626). Prior to version 7.0.8, a large BPF filter file provided to Suricata at startup could lead to a buffer overflow during the startup process. The vulnerability was discovered and reported by Roman Ezhov from Positive Technologies (GitHub Advisory).

The vulnerability is classified as CWE-680 (Integer Overflow to Buffer Overflow). The issue received a CVSS v3.1 base score of 3.3 (LOW) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L. This indicates that the vulnerability requires local access and user interaction to exploit, with potential impact limited to availability (GitHub Advisory, NVD).

The vulnerability affects the availability of the Suricata system. When exploited, it could lead to a buffer overflow during the startup process, potentially causing the service to crash or become unstable (GitHub Advisory).

The vulnerability has been patched in Suricata version 7.0.8. As a workaround for unpatched systems, users are advised not to use untrusted files as input to the suricata -F command line option (GitHub Advisory).