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
| Link | Resource |
|---|---|
| https://github.com/kubernetes-csi/external-snapshotter/issues/380 | Exploit Third Party Advisory |
| https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU | Mailing List Third Party Advisory |
| https://github.com/kubernetes-csi/external-snapshotter/issues/380 | Exploit Third Party Advisory |
| https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:39
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/kubernetes-csi/external-snapshotter/issues/380 - Exploit, Third Party Advisory | |
| References | () https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU - Mailing List, Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : 4.0
v3 : 4.3 |
Information
Published : 2021-01-21 17:15
Updated : 2024-11-21 05:39
NVD link : CVE-2020-8569
Mitre link : CVE-2020-8569
CVE.ORG link : CVE-2020-8569
JSON object : View
Products Affected
kubernetes
- container_storage_interface_snapshotter
CWE
CWE-476
NULL Pointer Dereference