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CVE-2024-55629

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.8, TCP streams with TCP urgent data (out of band data) can lead to Suricata analyzing data differently than the applications at the TCP endpoints, leading to possible evasions. Suricata 7.0.8 includes options to allow users to configure how to handle TCP urgent data. In IPS mode, you can use a rule such as drop tcp any any -> any any (sid:1; tcp.flags:U*;) to drop all the packets with urgent flag set.

Published

2025-01-06T18:15:23.130

Last Modified

2025-03-31T12:54:16.233

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-437
Type: Primary
CWE-436

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	oisf	suricata	< 7.0.8	Yes

References

https://github.com/OISF/suricata/commit/6882bcb3e51bd3cf509fb6569cc30f48d7bb53d7 Patch ([email protected])
https://github.com/OISF/suricata/commit/779f9d8ba35c3f9b5abfa327d3a4209861bd2eb8 Patch ([email protected])
https://github.com/OISF/suricata/security/advisories/GHSA-69wr-vhwg-84h2 Vendor Advisory ([email protected])
https://redmine.openinfosecfoundation.org/issues/7411 Permissions Required ([email protected])