we need to set a minimum version of dnsmasq package with the fix for the security vulnerability described in https://access.redhat.com/security/vulnerabilities/RHSB-2021-001
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (OpenShift Container Platform 4.6.15 bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:0235