CVE-2020-8551: Kubernetes kubelet denial of service
First published: Fri Mar 27 2020(Updated: )
The Kubelet component in versions 1.15.0-1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 has been found to be vulnerable to a denial of service attack via the kubelet API, including the unauthenticated HTTP read-only API typically served on port 10255, and the authenticated HTTPS API typically served on port 10250.
Credit: jordan@liggitt.net jordan@liggitt.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Kubernetes Kubernetes | >=1.15.0<=1.15.9 | |
| Kubernetes Kubernetes | >=1.16.0<=1.16.6 | |
| Kubernetes Kubernetes | >=1.17.0<=1.17.2 | |
| Fedoraproject Fedora | =32 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2020-8551
- https://github.com/kubernetes/kubernetes/issues/89377
- https://github.com/kubernetes/kubernetes/pull/87913
- https://github.com/kubernetes/kubernetes/commit/9802bfcec0580169cffce2a3d468689a407fa7dc
- https://groups.google.com/forum/#!topic/kubernetes-security-announce/2UOlsba2g0s
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
- https://security.netapp.com/advisory/ntap-20200413-0003/
- https://github.com/advisories/GHSA-qhm4-jxv7-j9pq (Advisory)
- https://groups.google.com/forum/#%21topic/kubernetes-security-announce/2UOlsba2g0s
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/
Frequently Asked Questions
What is CVE-2020-8551?
CVE-2020-8551 is a vulnerability in the Kubelet component of Kubernetes.
What is the severity of CVE-2020-8551?
CVE-2020-8551 has a severity level of 6.5 (medium).
Which versions of Kubernetes are affected by CVE-2020-8551?
Versions 1.15.0-1.15.9, 1.16.0-1.16.6, and 1.17.0-1.17.2 of Kubernetes are affected by CVE-2020-8551.
How can I fix CVE-2020-8551?
To fix CVE-2020-8551, update your Kubernetes version to 1.17.2, 1.16.6, or 1.15.10, depending on the version you are currently using.
Where can I find more information about CVE-2020-8551?
You can find more information about CVE-2020-8551 at the following references: [link1](https://nvd.nist.gov/vuln/detail/CVE-2020-8551), [link2](https://github.com/kubernetes/kubernetes/issues/89377), [link3](https://github.com/kubernetes/kubernetes/pull/87913).
- collector/github-advisory-latest
- alias/GHSA-qhm4-jxv7-j9pq
- alias/CVE-2020-8551
- collector/github-advisory
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- version/kubernetes kubernetes/1.15.0
- version/kubernetes kubernetes/1.15.9
- version/kubernetes kubernetes/1.16.0
- version/kubernetes kubernetes/1.16.6
- version/kubernetes kubernetes/1.17.0
- version/kubernetes kubernetes/1.17.2
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/32