Suricata af-packet: defrag option can lead to truncated packets affecting visibility
Summary
Suricata af-packet: defrag option can lead to truncated packets affecting visibility
Original description
The description as published by the source.
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The AF_PACKET defrag option is enabled by default and allows AF_PACKET to re-assemble fragmented packets before reaching Suricata. However the default packet size in Suricata is based on the network interface MTU which leads to Suricata seeing truncated packets. Upgrade to Suricata 7.0.9, which uses better defaults and adds warnings for user configurations that may lead to issues.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-29915 suricata
- Ubuntu UBUNTU-CVE-2025-29915 suricata
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- web redmine.openinfosecfoundation.org