CVE-2020-8569
CVSS V2 Medium 4
CVSS V3 Medium 6.5
Description
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.
Overview
- CVE ID
- CVE-2020-8569
- Assigner
- jordan@liggitt.net
- Vulnerability Status
- Analyzed
- Published Version
- 2021-01-21T17:15:14
- Last Modified Date
- 2021-02-01T19:05:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:* | 1 | OR | 2.1.0 | 2.1.3 |
| cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:* | 1 | OR | 3.0.0 | 3.0.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-8569 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8569 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:25:13 | Added to TrackCVE | |||
| 2022-12-05 20:45:33 | security@kubernetes.io | jordan@liggitt.net | CVE Assigner | updated |
| 2022-12-05 20:45:33 | 2021-01-21T17:15Z | 2021-01-21T17:15:14 | CVE Published Date | updated |
| 2022-12-05 20:45:33 | 2021-02-01T19:05:37 | CVE Modified Date | updated | |
| 2022-12-05 20:45:33 | Analyzed | Vulnerability Status | updated |