The following updates are available for CentOS 6:
CESA-2017:2791 Moderate CentOS 6 samba4 Security UpdateAugeas / Samba Updates for CentOS
and the following for CentOS 7:
CESA-2017:2788 Important CentOS 7 augeas Security Update
CESA-2017:2790 Moderate CentOS 7 samba Security Update
