Libreswan up to 3.27 IKEv1 Aggressive Mode programs/pluto/ikev1.c denial of service

Summaryinfo

A vulnerability was found in Libreswan up to 3.27. It has been classified as problematic. This impacts an unknown function of the file programs/pluto/ikev1.c of the component IKEv1 Aggressive Mode. This manipulation causes denial of service. This vulnerability is registered as CVE-2023-30570. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Libreswan up to 3.27. It has been declared as problematic. Affected by this vulnerability is an unknown code block of the file programs/pluto/ikev1.c of the component IKEv1 Aggressive Mode. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was published 05/04/2023. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-30570 since 04/12/2023. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 233740 (CBL Mariner 2.0 Security Update: libreswan (CVE-2023-30570)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.28 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 0d778556742ee03039cd78e5818db99bd7c12166 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 databases at Tenable (233740) and EUVD (EUVD-2023-34951). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Libreswan

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14
• 3.15
• 3.16
• 3.17
• 3.18
• 3.19
• 3.20
• 3.21
• 3.22
• 3.23
• 3.24
• 3.25
• 3.26
• 3.27

License

• open-source

Website

• Product: https://github.com/libreswan/libreswan/

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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