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USN-5347-1: OpenVPN vulnerability

24 March 2022

OpenVPN could allow unintended access to network services.



  • openvpn - virtual private network software


It was discovered that OpenVPN incorrectly handled certain configurations
with multiple authentication plugins. A remote attacker could possibly use
this issue to bypass authentication using incomplete credentials.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

In general, a standard system update will make all the necessary changes.