USN-8124-1 (UBUNTU-CVE-2026-1519)

Vulnerability from osv_ubuntu – Published: 2026-03-25 16:32 – Updated: 2026-06-30 15:54 – Source website
VLAI
Summary
bind9 vulnerabilities
Details

Samy Medjahed discovered that Bind incorrectly handled insecure delegation validation. A remote attacker could possibly use this issue to cause excessive NSEC3 iterations, consuming CPU resources, and leading to a denial of service. (CVE-2026-1519)

Vitaly Simonovich discovered that Bind incorrectly handled memory when preparing DNSSEC proofs of non-existence. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 25.10. (CVE-2026-3104)

Vitaly Simonovich discovered that Bind incorrectly handled authenticated queries containing TKEY records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. (CVE-2026-3119)

It was discovered that Bind incorrectly handled DNS queries signed with SIG(0). A remote attacker could possibly use this issue to bypass ACLs. This issue only affected Ubuntu 25.10. (CVE-2026-3591)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-1519",
              "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.18.39-0ubuntu0.22.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.18.39-0ubuntu0.22.04.3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:9.18.39-0ubuntu0.22.04.3"
            }
          ],
          "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",
        "1:9.18.18-0ubuntu0.22.04.2",
        "1:9.18.24-0ubuntu0.22.04.1",
        "1:9.18.28-0ubuntu0.22.04.1",
        "1:9.18.30-0ubuntu0.22.04.1",
        "1:9.18.30-0ubuntu0.22.04.2",
        "1:9.18.39-0ubuntu0.22.04.1",
        "1:9.18.39-0ubuntu0.22.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-1519",
              "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.18.39-0ubuntu0.24.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.18.39-0ubuntu0.24.04.3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:9.18.39-0ubuntu0.24.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:9.18.18-0ubuntu2",
        "1:9.18.21-0ubuntu1",
        "1:9.18.24-0ubuntu3",
        "1:9.18.24-0ubuntu4",
        "1:9.18.24-0ubuntu5",
        "1:9.18.28-0ubuntu0.24.04.1",
        "1:9.18.30-0ubuntu0.24.04.1",
        "1:9.18.30-0ubuntu0.24.04.2",
        "1:9.18.39-0ubuntu0.24.04.1",
        "1:9.18.39-0ubuntu0.24.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-1519",
              "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-2026-3104",
              "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-2026-3119",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-3591",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.20.11-1ubuntu2.2"
          },
          {
            "binary_name": "bind9-dnsutils",
            "binary_version": "1:9.20.11-1ubuntu2.2"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.20.11-1ubuntu2.2"
          },
          {
            "binary_name": "bind9-libs",
            "binary_version": "1:9.20.11-1ubuntu2.2"
          },
          {
            "binary_name": "bind9-utils",
            "binary_version": "1:9.20.11-1ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.20.11-1ubuntu2.2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:9.20.11-1ubuntu2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:9.20.4-3ubuntu1",
        "1:9.20.4-3ubuntu2",
        "1:9.20.4-3ubuntu3",
        "1:9.20.9-2ubuntu1",
        "1:9.20.10-1ubuntu1",
        "1:9.20.11-1ubuntu1",
        "1:9.20.11-1ubuntu2",
        "1:9.20.11-1ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Samy Medjahed discovered that Bind incorrectly handled insecure\ndelegation validation. A remote attacker could possibly use this issue to\ncause excessive NSEC3 iterations, consuming CPU resources, and leading to a\ndenial of service. (CVE-2026-1519)\n\nVitaly Simonovich discovered that Bind incorrectly handled memory when\npreparing DNSSEC proofs of non-existence. A remote attacker could possibly\nuse this issue to cause memory consumption, leading to a denial of service.\nThis issue only affected Ubuntu 25.10. (CVE-2026-3104)\n\nVitaly Simonovich discovered that Bind incorrectly handled authenticated\nqueries containing TKEY records. A remote attacker could possibly use this\nissue to cause Bind to crash, resulting in a denial of service. This issue\nonly affected Ubuntu 25.10. (CVE-2026-3119)\n\nIt was discovered that Bind incorrectly handled DNS queries signed with\nSIG(0). A remote attacker could possibly use this issue to bypass ACLs.\nThis issue only affected Ubuntu 25.10. (CVE-2026-3591)",
  "id": "USN-8124-1",
  "modified": "2026-06-30T15:54:54Z",
  "published": "2026-03-25T16:32:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8124-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-1519"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3104"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3119"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3591"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bind9 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-1519",
    "UBUNTU-CVE-2026-3104",
    "UBUNTU-CVE-2026-3119",
    "UBUNTU-CVE-2026-3591"
  ]
}



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