Vulnerabilities in SAMBA

Hello!
Recently multiple vulnerabilities was found in SAMBA packages.
https://access.redhat.com/security/cve/CVE-2016-2124
https://access.redhat.com/security/cve/CVE-2020-25717
https://access.redhat.com/security/cve/cve-2020-25719
https://access.redhat.com/security/cve/cve-2021-23192

How can I update samba packages:
samba-common-tools-4.14.5-2.el8.x86_64
samba-client-libs-4.14.5-2.el8.x86_64
samba-libs-4.14.5-2.el8.x86_64
samba-common-4.14.5-2.el8.noarch
samba-common-libs-4.14.5-2.el8.x86_64
samba-client-4.14.5-2.el8.x86_64

to version 4.15.2 or 4.14.10 according to this article https://www.samba.org/samba/security/CVE-2020-25717.html.
Red Hat 8.
When I try to update it through command yum update samba*, system not finding any updates.

Also I want to update packages on Red Hat 6:
samba-winbind-3.6.23-53.el6_10.x86_64
samba4-libs-4.2.10-15.el6.x86_64
samba-common-3.6.23-53.el6_10.x86_64
samba-winbind-clients-3.6.23-53.el6_10.x86_64
samba-client-3.6.23-53.el6_10.x86_64

Here the same problem with update.