pdns-recursor is vulnerable to Denial of Service (DoS). This vulnerability exists within PowerDNS Recursor which marks authoritative servers unavailable leading to the denial of service.
docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2023-02.html
lists.fedoraproject.org/archives/list/[email protected]/message/CN7VMRYKZHG2UDUAK326LXD3JY7NO3LR/
lists.fedoraproject.org/archives/list/[email protected]/message/IHPD6SIQOG7245GXFQHPUEI4AZ6Y3KD6/
security-tracker.debian.org/tracker/CVE-2023-26437