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CVE-2022-0547

Publication date 18 March 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Status

Package Ubuntu Release Status
openvpn 24.04 LTS noble
Fixed 2.5.5-1ubuntu3
23.10 mantic
Fixed 2.5.5-1ubuntu3
23.04 lunar
Fixed 2.5.5-1ubuntu3
22.10 kinetic
Fixed 2.5.5-1ubuntu3
22.04 LTS jammy
Fixed 2.5.5-1ubuntu3
21.10 impish
Fixed 2.5.1-3ubuntu1.1
20.04 LTS focal
Fixed 2.4.7-1ubuntu2.20.04.4
18.04 LTS bionic
Fixed 2.4.4-2ubuntu1.7
16.04 LTS xenial
14.04 LTS trusty

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openvpn

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references