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[email protected]NVD:CVE-2020-8569

HistoryJan 21, 2021 - 5:15 p.m.

CVE-2020-8569

2021-01-2117:15:14

CWE-476

[email protected]

web.nvd.nist.gov

kubernetes

csi

snapshot-controller

vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

Confidence

High

EPSS

0.001

Percentile

29.2%

JSON

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.

Affected configurations

Nvd

Node

kubernetescontainer_storage_interface_snapshotterRange2.1.0–2.1.3

kubernetescontainer_storage_interface_snapshotterRange3.0.0–3.0.2

VendorProductVersionCPE
kubernetescontainer_storage_interface_snapshotter*cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:*