ubuntu-cve-2023-5517
Vulnerability from osv_ubuntu
Published
2024-02-13 00:00
Modified
2026-04-22 07:45
Summary
Details

A flaw in query-handling code can cause named to exit prematurely with an assertion failure when: - nxdomain-redirect <domain>; is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.16.48-0ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.16.48-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:9.16.48-0ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:9.11.5.P4+dfsg-5.1ubuntu2",
        "1:9.11.5.P4+dfsg-5.1ubuntu3",
        "1:9.11.5.P4+dfsg-5.1ubuntu4",
        "1:9.11.5.P4+dfsg-5.1ubuntu5",
        "1:9.11.14+dfsg-1ubuntu1",
        "1:9.11.14+dfsg-3ubuntu1",
        "1:9.16.0-1ubuntu3",
        "1:9.16.0-1ubuntu4",
        "1:9.16.0-1ubuntu5",
        "1:9.16.1-0ubuntu1",
        "1:9.16.1-0ubuntu2",
        "1:9.16.1-0ubuntu2.1",
        "1:9.16.1-0ubuntu2.2",
        "1:9.16.1-0ubuntu2.3",
        "1:9.16.1-0ubuntu2.4",
        "1:9.16.1-0ubuntu2.6",
        "1:9.16.1-0ubuntu2.7",
        "1:9.16.1-0ubuntu2.8",
        "1:9.16.1-0ubuntu2.9",
        "1:9.16.1-0ubuntu2.10",
        "1:9.16.1-0ubuntu2.11",
        "1:9.16.1-0ubuntu2.12",
        "1:9.16.1-0ubuntu2.14",
        "1:9.16.1-0ubuntu2.15",
        "1:9.16.1-0ubuntu2.16"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          },
          {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          },
          {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          },
          {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.18.18-0ubuntu0.22.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.18.18-0ubuntu0.22.04.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:9.18.18-0ubuntu0.22.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:9.16.15-1ubuntu1",
        "1:9.16.15-1ubuntu2",
        "1:9.16.15-1ubuntu3",
        "1:9.18.0-2ubuntu1",
        "1:9.18.0-2ubuntu2",
        "1:9.18.0-2ubuntu3",
        "1:9.18.1-1ubuntu1",
        "1:9.18.1-1ubuntu1.1",
        "1:9.18.1-1ubuntu1.2",
        "1:9.18.1-1ubuntu1.3",
        "1:9.18.12-0ubuntu0.22.04.1",
        "1:9.18.12-0ubuntu0.22.04.2",
        "1:9.18.12-0ubuntu0.22.04.3",
        "1:9.18.18-0ubuntu0.22.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:   - `nxdomain-redirect \u003cdomain\u003e;` is configured, and   - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.",
  "id": "UBUNTU-CVE-2023-5517",
  "modified": "2026-04-22T07:45:08Z",
  "published": "2024-02-13T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-5517"
    },
    {
      "type": "REPORT",
      "url": "https://kb.isc.org/docs/cve-2023-5517"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6633-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6642-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-5517"
    }
  ],
  "related": [
    "USN-6633-1",
    "USN-6642-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-5517"
  ]
}



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