Reachable assertion in Suricata - CVE-2024-47522
Published: October 16, 2024 / Updated: April 27, 2026
Vulnerability identifier: #VU128038
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-47522
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open Information Security Foundation
Affected software:
Suricata
Suricata
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to reachable assertion in JA4 processing for TLS/QUIC traffic when handling invalid ALPN values. A remote attacker can send specially crafted TLS or QUIC traffic to cause a denial of service.
The issue is exposed when JA4 matching or logging is enabled.
How to mitigate CVE-2024-47522
Install security update from vendor's website.