pdns-recursor: An attacker can publish a zone containing specific Resource Record Sets
CVE-2025-30195 is fixed in pdns-recursor on 1 platform, first by DEBIAN-CVE-2025-30195, released April 7, 2025. It is not reported as exploited. Patch Radar priority: High.
An attacker can publish a zone containing specific Resource Record Sets. Processing and caching results for these sets can lead to an illegal memory accesses and crash of the Recursor, causing a denial of service. The remedy is: upgrade to the patched 5.2.1 version. We would like to thank Volodymyr Ilyin for bringing this issue to our attention.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| pdns-recursor · Debian 13.5 (trixie) | 5.2.1-1 | DEBIAN-CVE-2025-30195 | Apr 7, 2025 |
| pdns-recursor · Debian 14 | 5.2.1-1 | DEBIAN-CVE-2025-30195 | Apr 7, 2025 |
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