Vulnerability identifier: #VU88534

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-3652

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libreswan
Universal components / Libraries / Libraries used by multiple products

Vendor: libreswan.org

Description

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion within the compute_proto_keymat() function when handling IKEv1 packets within the default AH/ESP responder. A remote authenticated user can send specially crafted packets to the server and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libreswan: 3.22 - 4.14

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External links
http://libreswan.org/security/CVE-2024-3652
http://github.com/libreswan/libreswan/releases/tag/v4.15

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.