Debian Security Advisory

DLA-2992-1 openvpn -- LTS security update

Date Reported:
03 May 2022
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2017-12166, CVE-2020-11810, CVE-2020-15078, CVE-2022-0547.
More information:

Several issues were discovered in OpenVPN, a Virtual Private Network server and client, that could lead to authentication bypass when using deferred auth plugins.

Note that this upload disables support for multiple deferred auth plugins, following the upstream fix for CVE-2022-0547.

For Debian 9 stretch, these problems have been fixed in version 2.4.0-6+deb9u4.

We recommend that you upgrade your openvpn packages.

For the detailed security status of openvpn please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: