Provide references for CVE-2021-4218.
Where can I find more information about CVE-2021-4218?
References are available at: https://bugs.centos.org/view.php?id=18395, https://bugzilla.redhat.com/show_bug.cgi?id=2048359, https://access.redhat.com/security/cve/CVE-2021-4218.