CVE-2020-8557 (GCVE-0-2020-8557)
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
CWE
  • CWE-400 - Uncontrolled Resource Consumption
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
Impacted products
Vendor Product Version
Kubernetes Kubernetes Version: 1.15
Version: 1.14
Version: 1.13
Version: 1.12
Version: 1.11
Version: 1.10
Version: 1.9
Version: 1.8
Version: 1.7
Version: 1.6
Version: 1.5
Version: 1.4
Version: 1.3
Version: 1.2
Version: 1.1
Version: 1.18   < 1.18.6
Version: 1.17   < 1.17.9
Version: 1.16   < 1.16.13
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  }
}


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