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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade k3s | Aug 22, 2024 | Jul 23, 2020 |
| Debian | — | Upgrade kubernetes | Jul 30, 2024 | Jul 23, 2020 |
| Oracle_linux | — | Upgrade olcne-utilsUpgrade kubeletUpgrade kata-imageUpgrade olcne-nginxUpgrade kata-runtimeUpgrade olcnectlUpgrade kernel-uek-containerUpgrade kataUpgrade olcne-api-serverUpgrade olcne-agentUpgrade kubeadmUpgrade kubectl | Jul 23, 2020 | Jul 23, 2020 |
| Redhat Openshift | — | Upgrade atomic-openshiftUpgrade openshift | Dec 29, 2020 | Jul 15, 2020 |
| Suse | — | Upgrade kubernetes-clientUpgrade kubernetes-common | Feb 4, 2022 | Jul 22, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jul 23, 2020 |
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