Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
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Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-09-25. NVD baseline CVSS 7.5; sources differ by 0.0.
Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of algorithmic complexity. During an attack, an authoritative server must return large NS sets or address sets.
September 23, 2022
May 27, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | knot-resolver-module-http (3.2.1-3ubuntu2.1) @ focal | 2026-05-25 | ubuntu |
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