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CVE-2020-8557 REJECTED

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.

EPSS 0.11% · 29.6th percentile

Risk Scores

EPSS Score
0.11%
29.6th percentile

Affected Products

VendorProductVersions
Ubuntu:24.04:LTSkubernetes0, 1.0
Ubuntu:22.04:LTSkubernetes0, 1.0
Ubuntu:Pro:20.04:LTSkubernetes0, 1.0

Timeline

References

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