CVSS 3.1 Score 9.8 of 10 (high)


Published Dec 7, 2023
Updated: Dec 12, 2023
CWE ID 120


CVE-2023-41913 is a vulnerability in strongSwan, affecting versions before 5.9.12. This vulnerability allows for a buffer overflow and potential unauthenticated remote code execution through a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The attack can be carried out by using a crafted IKE_SA_INIT message. The vulnerability has been rated as critical with a base severity score of 9.8 and poses a high risk to organizations, with potential impacts on confidentiality, integrity, and availability of affected systems. To remediate this vulnerability, users are advised to update their strongSwan installations to version 5.9.12 or later.

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