An issue has been found in PowerDNS Authoritative Server versions up to and including 3.4.10, 4.0.1 allowing an authorized user to crash the server by inserting a specially crafted record in a zone under their control then sending a DNS query for that record. The issue is due to an integer overflow when checking if the content of the record matches the expected size, allowing an attacker to cause a read past the buffer boundary.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-pdns | Nov 1, 2018 | Nov 1, 2018 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Nov 1, 2018 | |
| Debian | debian-upgrade-pdns | Jan 14, 2017 | Jan 13, 2017 | |
| Freebsd | freebsd-upgrade-package-powerdnsfreebsd-upgrade-package-powerdns-recursor | Jan 19, 2017 | Jan 18, 2017 | |
| Suse | — | suse-upgrade-pdnssuse-upgrade-pdns-backend-ldapsuse-upgrade-pdns-backend-ldap-debuginfosuse-upgrade-pdns-backend-luasuse-upgrade-pdns-backend-lua-debuginfosuse-upgrade-pdns-backend-mydnssuse-upgrade-pdns-backend-mydns-debuginfosuse-upgrade-pdns-backend-mysqlsuse-upgrade-pdns-backend-mysql-debuginfosuse-upgrade-pdns-backend-postgresqlsuse-upgrade-pdns-backend-postgresql-debuginfosuse-upgrade-pdns-backend-sqlite3suse-upgrade-pdns-backend-sqlite3-debuginfosuse-upgrade-pdns-debuginfosuse-upgrade-pdns-debugsource | Jan 19, 2017 | Jan 13, 2017 |
| Ubuntu | no-fix-ubuntu-package | Jun 26, 2025 | Nov 1, 2018 |
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