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OpenAdvisories
High · 7.5 CVE-2024-23836 EUVD-2024-21278

crafted traffic can cause denial of service

Published Feb 26, 2024 · Updated Feb 13, 2025 · Assigned by GitHub_M

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the `stream.reassembly.depth` value helps reduce the severity of the issue.

Affected products

VendorProductAffectedFixed
OISF suricata < 6.0.16, >= 7.0.0, < 7.0.3 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 suricata 1:7.0.3-1 —
Debian 13 suricata 1:7.0.3-1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 suricata No fix yet —
Ubuntu 26.04 LTS suricata No fix yet —
Ubuntu 25.10 suricata No fix yet —
Ubuntu 24.04 LTS suricata No fix yet —
Ubuntu 22.04 LTS suricata No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 18.04 LTS suricata No fix yet —
Ubuntu 16.04 LTS suricata No fix yet —
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed suricata 8.0.0-1.1 openSUSE-SU-2025:15394-1

Advisories 1

References