Resource Exhaustion Affecting atomic-openshift-docker-excluder package, versions <0:3.11.542-1.git.0.f2fd300.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.5% (39th percentile)

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  • Snyk IDSNYK-RHEL7-ATOMICOPENSHIFTDOCKEREXCLUDER-5275586
  • published26 Mar 2023
  • disclosed15 Jul 2020

Introduced: 15 Jul 2020

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

How to fix?

Upgrade RHEL:7 atomic-openshift-docker-excluder to version 0:3.11.542-1.git.0.f2fd300.el7 or higher.
This issue was patched in RHSA-2021:3915.

NVD Description

Note: Versions mentioned in the description apply only to the upstream atomic-openshift-docker-excluder package and not the atomic-openshift-docker-excluder package as distributed by RHEL. See How to fix? for RHEL:7 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 Base Scores

version 3.1