USN-6642-1 (UBUNTU-CVE-2023-4408)

Vulnerability from osv_ubuntu – Published: 2024-02-19 14:00 – Updated: 2026-04-27 14:11 – Source website
VLAI
Summary
bind9 vulnerabilities
Details

Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled parsing large DNS messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-4408)

Elias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered that Bind icorrectly handled validating DNSSEC messages. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-50387)

It was discovered that Bind incorrectly handled preparing an NSEC3 closest encloser proof. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. (CVE-2023-50868)

It was discovered that Bind incorrectly handled reverse zone queries when nxdomain-redirect is enabled. A remote attacker could possibly use this issue to cause Bind to crash, leading to a denial of service. (CVE-2023-5517)

It was discovered that Bind incorrectly handled certain specific recursive query patterns. A remote attacker could possibly use this issue to cause Bind to consume memory, leading to a denial of service. (CVE-2023-6516)

Bind has been updated to 9.6.48. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information: https://downloads.isc.org/isc/bind9/9.16.48/doc/arm/html/notes.html

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-4408",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2023-5517",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2023-6516",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2023-50387",
              "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": "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"
                }
              ]
            },
            {
              "id": "CVE-2023-50868",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "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"
      ]
    }
  ],
  "aliases": [],
  "details": "Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered\nthat Bind incorrectly handled parsing large DNS messages. A remote attacker\ncould possibly use this issue to cause Bind to consume resources, leading\nto a denial of service. (CVE-2023-4408)\n\nElias Heftrig, Haya Schulmann, Niklas Vogel, and Michael Waidner discovered\nthat Bind icorrectly handled validating DNSSEC messages. A remote attacker\ncould possibly use this issue to cause Bind to consume resources, leading\nto a denial of service. (CVE-2023-50387)\n\nIt was discovered that Bind incorrectly handled preparing an NSEC3 closest\nencloser proof. A remote attacker could possibly use this issue to cause\nBind to consume resources, leading to a denial of service. (CVE-2023-50868)\n\nIt was discovered that Bind incorrectly handled reverse zone queries when\nnxdomain-redirect is enabled. A remote attacker could possibly use this\nissue to cause Bind to crash, leading to a denial of service.\n(CVE-2023-5517)\n\nIt was discovered that Bind incorrectly handled certain specific recursive\nquery patterns. A remote attacker could possibly use this issue to cause\nBind to consume memory, leading to a denial of service. (CVE-2023-6516)\n\nBind has been updated to 9.6.48. In addition to security fixes, the updated\npackages contain bug fixes, new features, and possibly incompatible\nchanges.\n\nPlease see the following for more information:\nhttps://downloads.isc.org/isc/bind9/9.16.48/doc/arm/html/notes.html\n",
  "id": "USN-6642-1",
  "modified": "2026-04-27T14:11:32Z",
  "published": "2024-02-19T14:00:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6642-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-4408"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-5517"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-6516"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-50387"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-50868"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bind9 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2023-4408",
    "UBUNTU-CVE-2023-5517",
    "UBUNTU-CVE-2023-6516",
    "UBUNTU-CVE-2023-50387",
    "UBUNTU-CVE-2023-50868"
  ]
}



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