Description
common_startup.cc in PowerDNS (aka pdns) Authoritative Server before 2.9.22.5 and 3.x before 3.0.1 allows remote attackers to cause a denial of service (packet loop) via a crafted UDP DNS response.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pdns | 3.0-1.1 | — |
| Debian 13 | pdns | 3.0-1.1 | — |
| Debian 12 | pdns | 3.0-1.1 | — |
| Debian 6.0 | pdns | 2.9.22-8+squeeze1 | DSA-2385-1 |
| Debian 5.0 | pdns | 2.9.21.2-1+lenny1 | DSA-2385-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pdns | 4.0.1-1.2 | openSUSE-SU-2024:10136-1 |
Advisories 2
- DSA-2385-1 pdns - packet loop Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10136-1 pdns-4.0.1-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026