p PatchFirst

CVE-2024-25581

CVE-2024-25581 · Transfer requests received over DoH can lead to a denial of service in DNSdist

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

When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default.

CVSS 7.5 · High · EPSS 1.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • dnsdist

    Versions
    • 1.9.0: Affected
    • 1.9.1: Affected
    • 1.9.2: Affected
    • 1.9.3: Affected

    No fix published

  • dnsdist Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.9.4-1

    Update to 1.9.4-1

  • dnsdist Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.9.4-1

    Update to 1.9.4-1

Original sources

Check your server →