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.

• http://www.openwall.com/lists/oss-security/2023/01/20/1
  Mailing ListRelease NotesThird Party Advisory
• https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1
  Release NotesVendor Advisory
• https://docs.powerdns.com/recursor/security-advisories/
  Vendor Advisory
• http://www.openwall.com/lists/oss-security/2023/01/20/1
  Mailing ListRelease NotesThird Party Advisory
• https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1
  Release NotesVendor Advisory
• https://docs.powerdns.com/recursor/security-advisories/
  Vendor Advisory