#VU102517 Buffer overflow in Suricata - CVE-2024-55626

Vulnerability identifier: #VU102517

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-55626

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Suricata
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Open Information Security Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when handling very large BPF filter file during startup. A remote attacker can trick the victim into providing a specially crafted BPF file to the application, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Suricata: 7.0.0 - 7.0.7

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External links
https://github.com/OISF/suricata/commit/dd71ef0af222a566e54dfc479dd1951dd17d7ceb
https://github.com/OISF/suricata/security/advisories/GHSA-wmg4-jqx5-4h9v
https://redmine.openinfosecfoundation.org/issues/7366

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.