An issue has been found in the DNSSEC parsing code of PowerDNS Recursor from 4.0.0 up to and including 4.0.6 leading to a memory leak when parsing specially crafted DNSSEC ECDSA keys. These keys are only parsed when validation is enabled by setting dnssec to a value other than off or process-no-validate (default).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade pdns-recursor | Jan 23, 2018 | Jan 23, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 23, 2018 |
| Debian | — | Upgrade pdns-recursor | Jul 30, 2024 | Jan 23, 2018 |
| Suse | — | Upgrade pdns-recursor-debugsourceUpgrade pdns-recursorUpgrade pdns-recursor-debuginfo | Dec 6, 2017 | Dec 6, 2017 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Jan 23, 2018 |
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