Vulnerability in Powerdns Recursor
CVE-2023-22617
A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.073 (94.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.073 · newest: 0.073 · change: 0.000
Affected products
- Powerdns Recursor — versions 4.8.0
Weakness classification (CWE)
References
- docs.powerdns.com/recursor/security-advisories/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2023/01/20/1 (mailing-list, Mailing List, Third Party Advisory, Release Notes)
- docs.powerdns.com/recursor/changelog/4.8.html (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-22617?
- CVE-2023-22617 is a high-severity vulnerability in Powerdns Recursor, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2023-01-21.
- How severe is CVE-2023-22617?
- High severity. CVSS v3 base score is 7.5 out of 10.