p PatchFirst

CVE-2022-0547

CVE-2022-0547

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 9.8 · Critical · EPSS 3.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • openvpn

    Versions
    • version 2.1 until version 2.4.12 and 2.5.6.: Affected

    No fix published

  • openvpn Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.5.6-1

    Update to 2.5.6-1

  • openvpn Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.5.6-1

    Update to 2.5.6-1

  • openvpn Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.5.6-1

    Update to 2.5.6-1

  • openvpn Ubuntu:Pro:14.04:LTS

    Versions
    • 2.3.2-4ubuntu1
    • 2.3.2-5ubuntu1
    • 2.3.2-7ubuntu1
    • 2.3.2-7ubuntu2
    • 2.3.2-7ubuntu3
    • 2.3.2-7ubuntu3.1
    • 2.3.2-7ubuntu3.2
    Affected ranges
    • ECOSYSTEM: < 2.3.2-7ubuntu3.2+esm1

    Update to 2.3.2-7ubuntu3.2+esm1

  • openvpn Ubuntu:Pro:16.04:LTS

    Versions
    • 2.3.7-1ubuntu1
    • 2.3.7-2ubuntu1
    • 2.3.8-1ubuntu1
    • 2.3.10-1ubuntu1
    • 2.3.10-1ubuntu2
    • 2.3.10-1ubuntu2.1
    • 2.3.10-1ubuntu2.2
    Affected ranges
    • ECOSYSTEM: < 2.3.10-1ubuntu2.2+esm1

    Update to 2.3.10-1ubuntu2.2+esm1

  • openvpn Ubuntu:18.04:LTS

    Versions
    • 2.4.3-4ubuntu1
    • 2.4.4-1ubuntu1
    • 2.4.4-2ubuntu1
    • 2.4.4-2ubuntu1.1
    • 2.4.4-2ubuntu1.2
    • 2.4.4-2ubuntu1.3
    • 2.4.4-2ubuntu1.5
    • 2.4.4-2ubuntu1.6
    Affected ranges
    • ECOSYSTEM: < 2.4.4-2ubuntu1.7

    Update to 2.4.4-2ubuntu1.7

  • openvpn Ubuntu:20.04:LTS

    Versions
    • 2.4.7-1ubuntu2
    • 2.4.7-1ubuntu2.20.04.2
    • 2.4.7-1ubuntu2.20.04.3
    Affected ranges
    • ECOSYSTEM: < 2.4.7-1ubuntu2.20.04.4

    Update to 2.4.7-1ubuntu2.20.04.4

  • openvpn Ubuntu:22.04:LTS

    Versions
    • 2.5.1-3ubuntu1
    • 2.5.1-3ubuntu2
    • 2.5.1-3ubuntu4
    • 2.5.1-3ubuntu5
    • 2.5.5-1ubuntu1
    Affected ranges
    • ECOSYSTEM: < 2.5.5-1ubuntu3

    Update to 2.5.5-1ubuntu3

Original sources

Check your server →