CVE-2023-41913

9.8 CRITICAL
Published: December 07, 2023 Modified: December 18, 2025
View on NVD

Description

strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/strongswan/strongswan/releases
Source: cve@mitre.org
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
Source: cve@mitre.org
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html
Source: cve@mitre.org
Vendor Advisory
https://github.com/strongswan/strongswan/releases
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes
https://lists.debian.org/debian-lts-announce/2023/11/msg00018.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20250117-0003/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
5.3%
90th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-120 CWE-120

Affected Vendors

strongswan

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