powerdns -- multiple vulnerabilities

PowerDNS Team reports:

CVE-2019-10162: An issue has been found in PowerDNS Authoritative Server allowing an authorized user to
cause the server to exit by inserting a crafted record in a MASTER type zone under their control. The
issue is due to the fact that the Authoritative Server will exit when it runs into a parsing error while
looking up the NS/A/AAAA records it is about to use for an outgoing notify.
CVE-2019-10163: An issue has been found in PowerDNS Authoritative Server allowing a remote, authorized
master server to cause a high CPU load or even prevent any further updates to any slave zone by sending
a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.