Vulnerability in Powerdns Recursor
CVE-2022-37428
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: +0.000
Affected products
- Powerdns Recursor
- Fedoraproject Fedora — versions 36
Weakness classification (CWE)
References
- docs.powerdns.com/recursor/lua-config/protobuf.html (Vendor Advisory)
- docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html (Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-37428?
- CVE-2022-37428 is a medium-severity vulnerability in Powerdns Recursor, classified under Incomplete Cleanup. CVSS score: 6.5/10. Published 2022-08-23.
- How severe is CVE-2022-37428?
- Medium severity. CVSS v3 base score is 6.5 out of 10.