OISF Suricata up to 6.0.18/7.0.4 HTTP/2 resource consumption

Summaryinfo

A vulnerability classified as problematic was found in OISF Suricata up to 6.0.18/7.0.4. This vulnerability affects unknown code of the component HTTP2 Handler. Such manipulation leads to resource consumption. This vulnerability is traded as CVE-2024-32663. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in OISF Suricata up to 6.0.18/7.0.4 and classified as problematic. Affected by this issue is an unknown function of the component HTTP2 Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).

The advisory is available at github.com. This vulnerability is handled as CVE-2024-32663 since 04/16/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 233594 (Debian dla-4103 : suricata - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.19 or 7.0.5 eliminates this vulnerability. Applying the patch 08d93f7c3762781b743f88f9fdc4389eb9c3eb64 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (233594). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• OISF

Name

• Suricata

Version

• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5
• 6.0.6
• 6.0.7
• 6.0.8
• 6.0.9
• 6.0.10
• 6.0.11
• 6.0.12
• 6.0.13
• 6.0.14
• 6.0.15
• 6.0.16
• 6.0.17
• 6.0.18
• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4

License

• open-source

Website

• Product: https://github.com/OISF/suricata/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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