# CVE-2022-37428: pdns-recursor: PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup...

CVE-2022-37428 is fixed in pdns-recursor on 1 platform, first by DEBIAN-CVE-2022-37428, released August 23, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-37428
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0144
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 23, 2022

## Description

PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a denial of service (daemon crash) via a DNS query that leads to an answer with specific properties.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | pdns-recursor Debian 12.15 (bookworm) | 4.7.2-1 | [DEBIAN-CVE-2022-37428](https://patchblox.com/security/data/fix/linux/debian-cve-2022-37428.md) | Aug 23, 2022 |
| Linux | pdns-recursor Debian 13.5 (trixie) | 4.7.2-1 | [DEBIAN-CVE-2022-37428](https://patchblox.com/security/data/fix/linux/debian-cve-2022-37428.md) | Aug 23, 2022 |
| Linux | pdns-recursor Debian 14 | 4.7.2-1 | [DEBIAN-CVE-2022-37428](https://patchblox.com/security/data/fix/linux/debian-cve-2022-37428.md) | Aug 23, 2022 |

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