OISF Suricata up to 6.0.18/7.0.4 Traffic heap-based overflow

Summaryinfo

A vulnerability was found in OISF Suricata up to 6.0.18/7.0.4. It has been rated as critical. The impacted element is an unknown function of the component Traffic Handler. This manipulation causes heap-based overflow. This vulnerability is tracked as CVE-2024-32664. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in OISF Suricata up to 6.0.18/7.0.4. It has been declared as critical. Affected by this vulnerability is an unknown function of the component Traffic Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect availability. The summary by CVE is:

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, specially crafted traffic or datasets can cause a limited buffer overflow. This vulnerability is fixed in 7.0.5 and 6.0.19. Workarounds include not use rules with `base64_decode` keyword with `bytes` option with value 1, 2 or 5 and for 7.0.x, setting `app-layer.protocols.smtp.mime.body-md5` to false.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2024-32664 since 04/16/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 6.0.19 or 7.0.5 eliminates this vulnerability. Applying the patch 311002baf288a225f62cf18a90c5fdd294447379 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.

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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/

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