UBUNTU-CVE-2022-0759

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    UBUNTU-CVE-2022-0759

    Published: 25 Mar 2022Last Modified: 20 May 2026
    Upstream:
    CVE-2022-0759

    Summary:

    Details: A flaw was found in all versions of kubeclient up to (but not including) v4.9.3, the Ruby client for Kubernetes REST API, in the way it parsed kubeconfig files. When the kubeconfig file does not configure custom CA to verify certs, kubeclient ends up accepting any certificate (it wrongly returns VERIFY_NONE). Ruby applications that leverage kubeclient to parse kubeconfig files are susceptible to Man-in-the-middle attacks (MITM).

    References: https://ubuntu.com/security/CVE-2022-0759, https://bugzilla.redhat.com/show_bug.cgi?id=2058404, https://github.com/ManageIQ/kubeclient/issues/554, https://github.com/ManageIQ/kubeclient/pull/556, https://github.com/ManageIQ/kubeclient/issues/555, https://github.com/ManageIQ/kubeclient/pull/556, https://www.cve.org/CVERecord?id=CVE-2022-0759

    Affected packages

    Package

    Name: ruby-kubeclient

    Purl: pkg:deb/ubuntu/ruby-kubeclient?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.3.0-2

    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-2022-0759 | CVE-DB