CVE-2023-22617

moderate-risk
Published 2023-01-21

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.

Do I need to act?

~
1.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Powerdns

References (6)

Mailing List http://www.openwall.com/lists/oss-security/2023/01/20/1
Release Notes https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1
Vendor Advisory https://docs.powerdns.com/recursor/security-advisories/
Mailing List http://www.openwall.com/lists/oss-security/2023/01/20/1
Release Notes https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1
Vendor Advisory https://docs.powerdns.com/recursor/security-advisories/
34
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 3/34 · Minimal
Exposure 5/34 · Minimal