UBUNTU-CVE-2022-0547

    Dashboard / Vulnerabilities / UBUNTU-CVE-2022-0547

    UBUNTU-CVE-2022-0547

    Published: 18 Mar 2022Last Modified: 4 Feb 2026
    Upstream:
    CVE-2022-0547

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2022-0547, https://community.openvpn.net/openvpn/wiki/CVE-2022-0547, https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements, https://ubuntu.com/security/notices/USN-5347-1, https://www.cve.org/CVERecord?id=CVE-2022-0547, https://ubuntu.com/security/notices/USN-6850-1

    Affected packages

    Package

    Name: openvpn

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.3.2-7ubuntu3.2+esm1

    Affected 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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2022-0547 | CVE-DB