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CVE-2020-15078

Published: 26 April 2021

OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
openvpn
Launchpad, Ubuntu, Debian
impish
Released (2.5.1-2)
upstream
Released (2.5.2)
trusty Not vulnerable
(code not present)
xenial Not vulnerable
(code not present)
bionic
Released (2.4.4-2ubuntu1.5)
focal
Released (2.4.7-1ubuntu2.20.04.2)
groovy
Released (2.4.9-3ubuntu1.1)
hirsute
Released (2.5.1-1ubuntu1.1)
jammy
Released (2.5.1-2)
Patches:
upstream: https://github.com/OpenVPN/openvpn/commit/f7b3bf067ffce72e7de49a4174fd17a3a83f0573 (v2.5.2)
upstream: https://github.com/OpenVPN/openvpn/commit/3d18e308c4e7e6f7ab7c2826c70d2d07b031c18a (v2.5.2)
upstream: https://github.com/OpenVPN/openvpn/commit/3aca477a1b58714754fea3a26d0892fffc51db6b (v2.5.2)
upstream: https://github.com/OpenVPN/openvpn/commit/0e5516a9d656ce86f7fb370c824344ea1760c255 (2.4.11)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N