Resource Exhaustion Affecting kubernetes-common package, versions <1.17.4-4.18.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-SLES151-KUBERNETESCOMMON-6358933
  • published3 Mar 2024
  • disclosed11 Aug 2020

Introduced: 11 Aug 2020

CVE-2020-8557  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 kubernetes-common to version 1.17.4-4.18.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubernetes-common package and not the kubernetes-common package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

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.

CVSS Scores

version 3.1