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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.
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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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OR
*cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:* versions from (including) 2.1.0 up to (excluding) 2.1.3
*cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.2
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CWE
NIST CWE-476
Changed
Reference Type
https://github.com/kubernetes-csi/external-snapshotter/issues/380 No Types Assigned
https://github.com/kubernetes-csi/external-snapshotter/issues/380 Exploit, Third Party Advisory
Changed
Reference Type
https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU No Types Assigned
https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU Mailing List, Third Party Advisory
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
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 vu
Quick Info
CVE Dictionary Entry: CVE-2020-8569 NVD
Published Date: 01/21/2021 NVD
Last Modified: 02/01/2021
Source: Kubernetes
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