How to block ICMP Timestamp Request and Reply in firewalld?

Solution Verified - Updated -

Issue

  • How to prevent a system from responding to ICMP request in response of CVE-1999-0524?
  • How to block ICMP Timestamp Request and Reply using firewalld?

Environment

  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 7

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