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 tries to store the notified serial in the PostgreSQL database, if this serial cannot be represented in 31 bits.
It has been discovered that the password reset feature is not safe. Indeed, after a successful password reset by a user, it is possible to change again his password during 24 hours without any knowledge except his email address.
This vulnerability is similar to the CVE-2018-1157. An authenticated user can cause the www binary to consume all memory via a crafted POST request to /jsproxy/upload. It's because of the incomplete fix for the CVE-2018-1157.