CVE-2020-8557
Vulnerability from cvelistv5
Published
2020-07-23 16:59
Modified
2024-09-17 03:14
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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
jordan@liggitt.nethttps://github.com/kubernetes/kubernetes/issues/93032Issue Tracking, Patch, Third Party Advisory
jordan@liggitt.nethttps://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY/m/vVSO61AhBwAJMailing List, Third Party Advisory
jordan@liggitt.nethttps://security.netapp.com/advisory/ntap-20200821-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/kubernetes/kubernetes/issues/93032Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY/m/vVSO61AhBwAJMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200821-0002/Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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  }
}


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