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Red Hat OpenShift: CVE-2021-3636: openshift: Injected service-ca.crt incorrectly contains additional internal CAs

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Red Hat OpenShift: CVE-2021-3636: openshift: Injected service-ca.crt incorrectly contains additional internal CAs

Severity
4
CVSS
(AV:A/AC:L/Au:S/C:P/I:P/A:N)
Published
07/29/2021
Created
07/30/2021
Added
07/29/2021
Modified
08/12/2021

Description

It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service.

Solution(s)

  • linuxrpm-upgrade-openshift

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