GHSA-hwrr-rhmm-vcvf

    Dashboard / Vulnerabilities / GHSA-hwrr-rhmm-vcvf

    GHSA-hwrr-rhmm-vcvf

    Published: 15 Feb 2022Last Modified: 8 Nov 2023
    Aliases:
    CVE-2020-8569

    Summary: NULL Pointer Dereference in Kubernetes CSI snapshot-controller

    Details: Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can’t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-8569, https://github.com/kubernetes-csi/external-snapshotter/issues/380, https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU

    Affected packages

    Package

    Name: github.com/kubernetes-csi/external-snapshotter/v2

    Purl: pkg:golang/github.com/kubernetes-csi/external-snapshotter/v2

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 2.0.0
    Fixed -2.1.3

    Affected versions

    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