[USN-5347-1] OpenVPN vulnerability

========================================================================== Ubuntu Security Notice USN-5347-1 March 24, 2022
openvpn vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 21.10 – Ubuntu 20.04 LTS – Ubuntu 18.04 LTS
OpenVPN could allow unintended access to network services.
Software Description: – 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: openvpn 2.5.1-3ubuntu1.1
Ubuntu 20.04 LTS: openvpn 2.4.7-1ubuntu2.20.04.4
Ubuntu 18.04 LTS: openvpn 2.4.4-2ubuntu1.7
In general, a standard system update will make all the necessary changes.
References: ubuntu.com/security/notices/USN-5347-1 CVE-2022-0547
Package Information: launchpad.net/ubuntu/+source/openvpn/2.5.1-3ubuntu1.1 launchpad.net/ubuntu/+source/openvpn/2.4.7-1ubuntu2.20.04.4 launchpad.net/ubuntu/+source/openvpn/2.4.4-2ubuntu1.7