MediumFix available

dnsdist — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-14663

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.

Products: dnsdist
Affected versions: Not specified
Fixed versions: 1.3.3-1
CVEs: CVE-2018-14663
Confirmed fixed CVEs: Not specified
Updated in this feed: 1 Nov 2026, 00:07 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-14663

core-osv · Original source

Published 26 Nov 2018, 23:29 UTC

osv:DEBIAN-CVE-2018-14663

dnsdist

Fixed versions: 1.3.3-1

dnsdist

Fixed versions: 1.3.3-1

dnsdist

Fixed versions: 1.3.3-1

Complete source record

{
  "id": "40c6b190bac8fa869ed6d464de4066c9eb71a9fbc68537967ef6728d478a9667",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-14663",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-14663",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2018-14663",
    "products": [
      {
        "name": {
          "value": "dnsdist",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.3-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "dnsdist",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.3-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "dnsdist",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.3.3-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2018-14663",
      "aliases": [
        "DEBIAN-CVE-2018-14663"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.3-1"
                }
              ]
            }
          ],
          "package": {
            "name": "dnsdist",
            "purl": "pkg:deb/debian/dnsdist?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14663.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.3-1"
                }
              ]
            }
          ],
          "package": {
            "name": "dnsdist",
            "purl": "pkg:deb/debian/dnsdist?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14663.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.3.3-1"
                }
              ]
            }
          ],
          "package": {
            "name": "dnsdist",
            "purl": "pkg:deb/debian/dnsdist?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-14663.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:02:59.933392314Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-14663"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-14663"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-14663",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 420056,
  "published_at": "2018-11-26T23:29:00.813+00:00"
}