CVE-2021-3156 `sudo` vulnerability mitigation for OpenShift 4

Solution Verified - Updated -

Issue

  • Is OpenShift 4.x vulnerable to CVE-2021-3156 sudo vulnerability?
  • How to mitigate CVE-2021-3156 sudo vulnerability on OpenShift 4
  • Is Red Hat Enterprise Linux CoreOS (RHCOS) affected by the CVE-2021-3156 sudo vulnerability?

Environment

  • Red Hat OpenShift Container Platform (OCP) 4.x
  • Red Hat Enterprise Linux CoreOS (RHCOS)

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