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CVE-2020-12667

CVE-2020-12667

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 7.5 · High · EPSS 2.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • knot-resolver Debian:12

    Affected ranges
    • ECOSYSTEM: < 5.1.1-0.1

    Update to 5.1.1-0.1

  • knot-resolver Debian:13

    Affected ranges
    • ECOSYSTEM: < 5.1.1-0.1

    Update to 5.1.1-0.1

  • knot-resolver Debian:14

    Affected ranges
    • ECOSYSTEM: < 5.1.1-0.1

    Update to 5.1.1-0.1

  • knot-resolver Ubuntu:Pro:16.04:LTS

    Versions
    • 1.0.0~beta2-123-g6134920-1
    • 1.0.0~beta3-1
    • 1.0.0~beta3-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • knot-resolver Ubuntu:Pro:18.04:LTS

    Versions
    • 1.3.3-1
    • 1.5.0-4
    • 1.5.1-1
    • 1.5.2-1
    • 2.0.0-3
    • 2.1.0-1
    • 2.1.0-2
    • 2.1.1-1
    • 2.1.1-1ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • knot-resolver Ubuntu:20.04:LTS

    Versions
    • 3.2.1-3
    • 3.2.1-3ubuntu1
    • 3.2.1-3ubuntu2
    • 3.2.1-3ubuntu2.1
    Affected ranges
    • ECOSYSTEM: < 3.2.1-3ubuntu2.2

    Update to 3.2.1-3ubuntu2.2

Original sources

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