An updated shadow-utils package has been released for CentOS-3 x86_64
A new shadow-utils package is available for CentOS-3 x86_64. Refer to https://rhn.redhat.com/errata/RHBA-2004-472.html.
RPMS/shadow-utils-4.0.3-22.02.x86_64.rpm
SRPMS/shadow-utils-4.0.3-22.02.src.rpm
Execute "yum update shadow-utils" to apply.