The following pdns updates has been released for openSUSE:
openSUSE-SU-2018:4151-1: moderate: Security update for pdns-recursorPDNS Updates for openSUSE
openSUSE-SU-2018:4152-1: moderate: Security update for pdns-recursor
openSUSE-SU-2018:4156-1: moderate: Security update for pdns