CVE-2020-8557: Uncontrolled Resource Consumption

July 23, 2020 (updated August 21, 2020)

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

nvd.nist.gov/vuln/detail/CVE-2020-8557

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