VulnerabilityModified
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.
HIGH 7.5EPSS 7.32%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 7.32% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-674
- Affected
- powerdns/recursor
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2023/01/20/1Mailing List, Release Notes, Third Party Advisory
- https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1Release Notes, Vendor Advisory
- https://docs.powerdns.com/recursor/security-advisories/Vendor Advisory
- http://www.openwall.com/lists/oss-security/2023/01/20/1Mailing List, Release Notes, Third Party Advisory
- https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1Release Notes, Vendor Advisory
- https://docs.powerdns.com/recursor/security-advisories/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.