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CVE-2023-22617

Good to know:

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Date: January 21, 2023

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.

Language: C++

Severity Score

Related Resources (8)

https://docs.powerdns.com/recursor/security-advisories/
https://seclists.org/oss-sec/2023/q1/43
http://www.openwall.com/lists/oss-security/2023/01/20/1
https://github.com/PowerDNS/pdns/commit/90ae17e1101c660309609fbc43b8d36dfca9c99e
https://security-tracker.debian.org/tracker/CVE-2023-22617
https://nvd.nist.gov/vuln/detail/CVE-2023-22617
https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1
https://www.mend.io/vulnerability-database/CVE-2023-22617

Severity Score

Weakness Type (CWE)

Uncontrolled Recursion

CWE-674

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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