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CVE-2018-14663

CVE-2018-14663

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

An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.

CVSS 5.9 · Medium · EPSS 2.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • dnsdist

    Versions
    • 1.3.3: Affected

    No fix published

  • dnsdist Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.3.3-1

    Update to 1.3.3-1

  • dnsdist Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.3.3-1

    Update to 1.3.3-1

  • dnsdist Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.3.3-1

    Update to 1.3.3-1

  • dnsdist Ubuntu:16.04:LTS

    Versions
    • 1.0.0~alpha2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • dnsdist Ubuntu:Pro:18.04:LTS

    Versions
    • 1.2.0-1
    • 1.2.0-3
    • 1.2.1-1
    • 1.2.1-1build1
    • 1.2.1-1ubuntu0.1~esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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