CVE-2020-8557

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-8557
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8557.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-8557
Aliases
Published
2020-07-23T17:15:12Z
Modified
2024-06-10T17:13:44.291231Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it could fill the storage space of the node and cause the node to fail.

References

Affected packages

Git / github.com/kubernetes/kubelet

Affected ranges

Type
GIT
Repo
https://github.com/kubernetes/kubelet
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed