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Red Hat OpenShift: CVE-2021-25737: kubernetes: Holes in EndpointSlice Validation Enable Host Network Hijack

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Red Hat OpenShift: CVE-2021-25737: kubernetes: Holes in EndpointSlice Validation Enable Host Network Hijack

Severity
5
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:N)
Published
07/29/2021
Created
07/30/2021
Added
07/29/2021
Modified
09/16/2021

Description

A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.

Solution(s)

  • linuxrpm-upgrade-openshift

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