CVE-2023-41913

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/strongswan/strongswan/releases	Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html	Vendor Advisory
https://github.com/strongswan/strongswan/releases	Release Notes
https://lists.debian.org/debian-lts-announce/2023/11/msg00018.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/
https://security.netapp.com/advisory/ntap-20250117-0003/
https://www.strongswan.org/blog/2023/11/20/strongswan-vulnerability-%28cve-2023-41913%29.html	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*

History

04 Nov 2025, 20:16

Type	Values Removed	Values Added
References		() https://lists.debian.org/debian-lts-announce/2023/11/msg00018.html -

04 Nov 2025, 18:15

Type	Values Removed	Values Added
References		() https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YPJZPYHBCRXUQGGKQE6TYH4J4RIJH6HO/ -

17 Jan 2025, 20:15

Type	Values Removed	Values Added
References		() https://security.netapp.com/advisory/ntap-20250117-0003/ -

Information

Published : 2023-12-07 05:15

Updated : 2025-11-04 20:16

NVD link : CVE-2023-41913

Mitre link : CVE-2023-41913

CVE.ORG link : CVE-2023-41913

JSON object : View

Products Affected

strongswan

strongswan

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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