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CVE-2019-10190

CVE-2019-10190

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

A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.

CVSS 5.4 · Medium · EPSS 2.0% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • knot-resolver

    Versions
    • from 3.2.0 before 4.1.0: Affected

    No fix published

  • knot-resolver Debian:12

    Affected ranges
    • ECOSYSTEM: < 5.0.1-1

    Update to 5.0.1-1

  • knot-resolver Debian:13

    Affected ranges
    • ECOSYSTEM: < 5.0.1-1

    Update to 5.0.1-1

  • knot-resolver Debian:14

    Affected ranges
    • ECOSYSTEM: < 5.0.1-1

    Update to 5.0.1-1

  • 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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