OpenVPN 3 Core library 3.6 and 3.6.1 possible certificate authentication bypass [CVE-2021-3547]

CVE number – CVE-2021-3547

OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration.

This issue is resolved in OpenVPN 3 Core library 3.6.2

Jason Davies

UK based technology professional, with an interest in computer security and telecoms.

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