Off-by-one in Suricata - CVE-2024-45796
Published: October 16, 2024 / Updated: April 27, 2026
Vulnerability identifier: #VU128039
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-45796
CWE-ID: CWE-193
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 bypass policy enforcement.
The vulnerability exists due to an off-by-one error in the defragmentation and fragment reassembly logic when processing crafted fragmented packets. A remote attacker can send specially crafted packets to bypass policy enforcement.
Valid traffic may fail reassembly when the issue is triggered.
How to mitigate CVE-2024-45796
Install security update from vendor's website.