CVE-2020-8569 (GCVE-0-2020-8569)
Vulnerability from cvelistv5 – Published: 2021-01-21 17:09 – Updated: 2024-09-17 01:47
VLAI
EPSS
VEX
Title
Kubernetes CSI snapshot-controller DoS
Summary
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.
Severity
4.3 (Medium)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
kubernetes
CNA
References
2 references
| URL | Tags |
|---|---|
| https://groups.google.com/g/kubernetes-security-a… | x_refsource_MISC |
| https://github.com/kubernetes-csi/external-snapsh… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kubernetes | CSI Snapshotter |
Affected:
snapshot-controller v3.0 , ≤ v3.0.1
(custom)
Affected: snapshot-controller v2.1 , ≤ v2.1.2 (custom) |
Date Public
2020-11-17 00:00
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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