CVE-2020-25829
Fixed in a distro release EPSS 7%
An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process).
Products: powerdns recursor, opensuse backports_sle, opensuse leap
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Arch Linux | powerdns-recursor | 4.3.5-1 |
| Debian 10 | pdns-recursor | 4.1.11-1+deb10u2 |
| Debian 12 | pdns-recursor | 4.3.5-1 |
| Debian 13 | pdns-recursor | 4.3.5-1 |
| Debian 14 | pdns-recursor | 4.3.5-1 |
| SUSE Package Hub 12 SP1 | pdns-recursor | 4.3.5-bp152.2.12.1 |
| SUSE Package Hub 15 SP1 | pdns-recursor | 4.3.5-bp152.2.12.1 |
| SUSE Package Hub 15 SP2 | pdns-recursor | 4.3.5-bp152.2.12.1 |
| Ubuntu Pro 16.04 LTS | pdns-recursor | no fix |
| Ubuntu Pro 18.04 LTS | pdns-recursor | no fix |
| Ubuntu Pro 20.04 LTS | pdns-recursor | no fix |
| openSUSE Leap 15.1 | pdns-recursor | 4.3.5-bp152.2.12.1 |
| openSUSE Leap 15.2 | pdns-recursor | 4.3.5-bp152.2.12.1 |
| openSUSE Tumbleweed | pdns-recursor | 4.5.5-1.3 |