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OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade openvpn | Mar 26, 2024 | Mar 18, 2022 |
| Amazon_linux | — | Upgrade openvpn | Apr 6, 2023 | Mar 18, 2022 |
| Debian | — | Upgrade openvpn | May 5, 2022 | Mar 18, 2022 |
| Freebsd | — | Upgrade openvpnUpgrade openvpn-mbedtls | Nov 4, 2022 | Mar 17, 2022 |
| Gentoo Linux | — | Upgrade net-vpn/openvpn. | Sep 23, 2024 | Mar 18, 2022 |
| Suse | — | Upgrade openvpn-openssl1Upgrade openvpnUpgrade openvpn-auth-pam-pluginUpgrade openvpn-develUpgrade openvpn-down-root-pluginUpgrade openvpn-openssl1-down-root-plugin | Oct 26, 2022 | Mar 18, 2022 |
| Ubuntu | — | Upgrade openvpn (Ubuntu Pro)Upgrade openvpn | Mar 25, 2022 | Mar 18, 2022 |
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