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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade pdns | Nov 1, 2018 | Nov 1, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Nov 1, 2018 |
| Debian | — | Upgrade pdns | Jan 14, 2017 | Jan 13, 2017 |
| Freebsd | — | Upgrade powerdns-recursorUpgrade powerdns | Jan 19, 2017 | Jan 18, 2017 |
| Suse | — | Upgrade pdns-backend-postgresql-debuginfoUpgrade pdns-backend-mydns-debuginfoUpgrade pdns-backend-lua-debuginfoUpgrade pdns-backend-sqlite3-debuginfoUpgrade pdns-backend-mysql-debuginfoUpgrade pdnsUpgrade pdns-backend-postgresqlUpgrade pdns-backend-mysqlUpgrade pdns-backend-ldap-debuginfoUpgrade pdns-backend-mydnsUpgrade pdns-debuginfoUpgrade pdns-backend-sqlite3Upgrade pdns-backend-luaUpgrade pdns-backend-ldapUpgrade pdns-debugsource | Jan 19, 2017 | Jan 13, 2017 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Nov 1, 2018 |
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