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Red Hat OpenShift: CVE-2020-8558: kubernetes: node localhost services reachable via martian packets

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Red Hat OpenShift: CVE-2020-8558: kubernetes: node localhost services reachable via martian packets

Severity
6
CVSS
(AV:A/AC:L/Au:N/C:P/I:P/A:P)
Published
07/27/2020
Created
12/30/2020
Added
12/29/2020
Modified
03/19/2021

Description

The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.

Solution(s)

  • linuxrpm-upgrade-atomic-openshift
  • linuxrpm-upgrade-openshift

References

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