Vulnerability · Published Aug 23, 2022 · Assigned by mitre
CVE-2022-37428
Medium 6.5
In plain English
A medium-severity security flaw in the pdns-recursor package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.4%top 26.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | pdns-recursor | 4.7.2-r0 | ALPINE-CVE-2022-37428 |
| Alpine:v3.21 | pdns-recursor | 4.7.2-r0 | ALPINE-CVE-2022-37428 |
| Alpine:v3.22 | pdns-recursor | 4.7.2-r0 | ALPINE-CVE-2022-37428 |
| Alpine:v3.23 | pdns-recursor | 4.7.2-r0 | ALPINE-CVE-2022-37428 |
| Alpine:v3.24 | pdns-recursor | 4.7.2-r0 | ALPINE-CVE-2022-37428 |
| Debian:12 | pdns-recursor | 4.7.2-1 | DEBIAN-CVE-2022-37428 |
| Debian:13 | pdns-recursor | 4.7.2-1 | DEBIAN-CVE-2022-37428 |
| Debian:14 | pdns-recursor | 4.7.2-1 | DEBIAN-CVE-2022-37428 |
Affected products (as reported)
References
- https://docs.powerdns.com/recursor/lua-config/protobuf.html x_refsource_MISC
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html x_refsource_MISC
- FEDORA-2022-d1dcd9b046 vendor-advisory, x_refsource_FEDORA