PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a denial of service (daemon crash) via a DNS query that leads to an answer with specific properties.
The product does not properly “clean up” and remove temporary or supporting resources after they have been used.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Recursor | Powerdns | 4.5.0 (including) | 4.5.10 (excluding) |
| Recursor | Powerdns | 4.6.0 (including) | 4.6.3 (excluding) |
| Recursor | Powerdns | 4.7.0 (including) | 4.7.2 (excluding) |
| Pdns-recursor | Ubuntu | bionic | * |
| Pdns-recursor | Ubuntu | kinetic | * |
| Pdns-recursor | Ubuntu | trusty | * |
| Pdns-recursor | Ubuntu | upstream | * |
| Pdns-recursor | Ubuntu | xenial | * |