~ / search / GHSA-hwrr-rhmm-vcvf

GHSA-hwrr-rhmm-vcvf

NULL Pointer Dereference in Kubernetes CSI snapshot-controller

Source: GitHub Advisory Database (reviewed) Moderate CVE-2020-8569

Packages

EcosystemPackageAffectedFixed in
Go github.com/kubernetes-csi/external-snapshotter/v2 >= 2.0.0, < 2.1.3 2.1.3
Go github.com/kubernetes-csi/external-snapshotter/v3 >= 3.0.0, < 3.0.2 3.0.2

Details

As written in the advisory (Markdown source, shown as plain text).

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

External links from the advisory. They lead to third-party sites.