| Name | CVE-2025-30192 |
| Description | An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1109808 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pdns-recursor (PTS) | bullseye | 4.4.2-3 | vulnerable |
| bookworm, bookworm (security) | 4.8.8-1+deb12u1 | vulnerable |
| sid, trixie | 5.2.4-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
[bookworm] - pdns-recursor <no-dsa> (Minor issue; can be fixed via point release update)
[bullseye] - pdns-recursor <end-of-life> (No longer supported with security updates in Bullseye)
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html