CVE-2018-14644
Fixed in a distro release EPSS 5%CVSS 5.3
An issue has been found in PowerDNS Recursor from 4.0.0 up to and including 4.1.4. A remote attacker sending a DNS query for a meta-type like OPT can lead to a zone being wrongly cached as failing DNSSEC validation. It only arises if the parent zone is signed, and all the authoritative servers for that parent zone answer with FORMERR to a query for at least one of the meta-types. As a result, subsequent queries from clients requesting DNSSEC validation will be answered with a ServFail.
Products: powerdns recursor
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Arch Linux | powerdns-recursor | 4.1.5-1 |
| Debian 12 | pdns-recursor | 4.1.7-1 |
| Debian 13 | pdns-recursor | 4.1.7-1 |
| Debian 14 | pdns-recursor | 4.1.7-1 |
| SUSE Package Hub 12 SP1 | pdns-recursor | 4.1.8-13.1 |
| SUSE Package Hub 15 | pdns-recursor | 4.1.2-bp150.2.3.1 |
| Ubuntu Pro 16.04 LTS | pdns | 4.0.0~alpha2-3ubuntu0.1~esm1 |
| Ubuntu Pro 16.04 LTS | pdns-recursor | 4.0.0~alpha2-2ubuntu0.1+esm1 |
| Ubuntu Pro 18.04 LTS | pdns | 4.1.1-1ubuntu0.1~esm1 |
| Ubuntu Pro 18.04 LTS | pdns-recursor | 4.1.1-2ubuntu0.1~esm1 |
| Ubuntu Pro 20.04 LTS | pdns | 4.2.1-1ubuntu0.1~esm1 |
| Ubuntu Pro 20.04 LTS | pdns-recursor | 4.2.1-1ubuntu0.1~esm1 |
| Ubuntu Pro 22.04 LTS | pdns | 4.5.3-1ubuntu0.1~esm1 |
| Ubuntu Pro 22.04 LTS | pdns-recursor | 4.6.0-1ubuntu1+esm1 |
| openSUSE Tumbleweed | pdns-recursor | 4.5.5-1.3 |