Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade knot-resolver | Jun 16, 2020 | May 19, 2020 |
| Debian | — | Upgrade knot-resolver | Apr 29, 2024 | May 19, 2020 |
| Ubuntu | — | Upgrade knot-resolver | Oct 2, 2024 | May 19, 2020 |
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