CVE catalog

CVE-2024-25581

dnsdist affected and fixed versions

[CVE catalog]

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.

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
1.08% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "dnsdist",
      "status": "fixed",
      "release": "sid",
      "version": "2.1.3-1"
    },
    {
      "name": "dnsdist",
      "status": "fixed",
      "release": "forky",
      "version": "2.1.3-1"
    },
    {
      "name": "dnsdist",
      "status": "fixed",
      "release": "trixie",
      "version": "1.9.16-0+deb13u1"
    },
    {
      "name": "dnsdist",
      "status": "fixed",
      "release": "trixie-security",
      "version": "1.9.16-0+deb13u1"
    },
    {
      "name": "dnsdist",
      "status": "not affected",
      "release": "bookworm",
      "version": "1.7.3-2"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1071750,
      "name": "dnsdist",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "1.9.4-1"
    },
    {
      "bug": 1071750,
      "name": "dnsdist",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "1.9.4-1"
    },
    {
      "bug": 1071750,
      "name": "dnsdist",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "1.9.4-1"
    },
    {
      "bug": 1071750,
      "name": "dnsdist",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    }
  ],
  "distribution_packages": [
    {
      "name": "dnsdist",
      "distro": "opensuse",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.4-1.1"
            }
          ]
        }
      ],
      "release": "tumbleweed",
      "versions": [],
      "ecosystem": "rpm",
      "fixed_version": "1.9.4-1.1",
      "provider_record_id": "OPENSUSE-SU-2024:13958-1"
    }
  ]
}

[Debian bug #1071750]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [dnsdist]Unknown
    Details (2)

    • 1.7.3-2 · amd64 · bookworm

      Not affected

      dsa · dnsdist · debian · bookworm

    • 1.7.3-2 · arm64 · bookworm

      Not affected

      dsa · dnsdist · debian · bookworm

[Debian 13 (Trixie)]

  • [dnsdist]Unknown
    Details (4)

    • 1.9.15-0+deb13u1 · amd64 · trixie

      Fixed · Fixed: 1.9.4-1

      dsa · dnsdist · debian · 13

    • 1.9.15-0+deb13u1 · arm64 · trixie

      Fixed · Fixed: 1.9.4-1

      dsa · dnsdist · debian · 13

    • 1.9.16-0+deb13u1 · amd64 · trixie-security

      Fixed · Fixed: 1.9.4-1

      dsa · dnsdist · debian · 13

    • 1.9.16-0+deb13u1 · arm64 · trixie-security

      Fixed · Fixed: 1.9.4-1

      dsa · dnsdist · debian · 13

[openSUSE Tumbleweed]

  • [dnsdist]Unknown

    Source package: [dnsdist]

    Details (1)

    • 2.0.7-1.1 · x86_64 · tumbleweed

      Fixed · Fixed: 1.9.4-1.1

      dsa · dnsdist · opensuse · tumbleweed

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]