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usn-8682-1
Vulnerability from osv_ubuntu
Published
2026-08-26 16:49
Modified
2026-08-26 16:49
Summary
bind9 vulnerabilities
Details

Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could possibly use this issue to cause Bind to use excessive resources, leading to a denial of service. (CVE-2026-3039)

Shuhan Zhang discovered that Bind incorrectly handled self-pointed glue records. A remote attacker could possibly use this issue to use Bind in denial of service amplification attacks against other systems. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2026-3592)

It was discovered that Bind incorrectly handled DNS messages whose class was not IN. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2026-5946)


{
  "affected": [
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      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-3039",
              "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:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "host",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "libbind9-90",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "libdns100",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "libisc95",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "libisccc90",
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            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
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          {
            "binary_name": "liblwres90",
            "binary_version": "1:9.9.5.dfsg-3ubuntu0.19+esm14"
          },
          {
            "binary_name": "lwresd",
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          }
        ]
      },
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      },
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        "1:9.9.5.dfsg-3ubuntu0.10",
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        "1:9.9.5.dfsg-3ubuntu0.15",
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        "1:9.9.5.dfsg-3ubuntu0.18",
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        "1:9.9.5.dfsg-3ubuntu0.19+esm2",
        "1:9.9.5.dfsg-3ubuntu0.19+esm3",
        "1:9.9.5.dfsg-3ubuntu0.19+esm4",
        "1:9.9.5.dfsg-3ubuntu0.19+esm5",
        "1:9.9.5.dfsg-3ubuntu0.19+esm6",
        "1:9.9.5.dfsg-3ubuntu0.19+esm7",
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        "1:9.9.5.dfsg-3ubuntu0.19+esm11",
        "1:9.9.5.dfsg-3ubuntu0.19+esm12",
        "1:9.9.5.dfsg-3ubuntu0.19+esm13"
      ]
    },
    {
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            {
              "id": "CVE-2026-3039",
              "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:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
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          {
            "binary_name": "bind9",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "host",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libbind9-140",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libdns-export162",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libdns162",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
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            "binary_name": "libirs-export141",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libirs141",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libisc-export160",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libisc160",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libisccc-export140",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libisccc140",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libisccfg-export140",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "libisccfg140",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "liblwres141",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          },
          {
            "binary_name": "lwresd",
            "binary_version": "1:9.10.3.dfsg.P4-8ubuntu1.19+esm10"
          }
        ]
      },
      "package": {
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        "name": "bind9",
        "purl": "pkg:deb/ubuntu/bind9@1:9.10.3.dfsg.P4-8ubuntu1.19+esm10?arch=source\u0026distro=esm-infra-legacy/xenial"
      },
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        "1:9.10.3.dfsg.P4-8ubuntu1.10",
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        "1:9.10.3.dfsg.P4-8ubuntu1.15",
        "1:9.10.3.dfsg.P4-8ubuntu1.16",
        "1:9.10.3.dfsg.P4-8ubuntu1.17",
        "1:9.10.3.dfsg.P4-8ubuntu1.18",
        "1:9.10.3.dfsg.P4-8ubuntu1.19",
        "1:9.10.3.dfsg.P4-8ubuntu1.19+esm1",
        "1:9.10.3.dfsg.P4-8ubuntu1.19+esm2",
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        "1:9.10.3.dfsg.P4-8ubuntu1.19+esm9"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-3039",
              "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-2026-3592",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-5946",
              "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:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
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          {
            "binary_name": "bind9",
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          {
            "binary_name": "bind9-host",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm5"
          },
          {
            "binary_name": "bind9utils",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm5"
          },
          {
            "binary_name": "dnsutils",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm5"
          },
          {
            "binary_name": "libbind9-160",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm5"
          },
          {
            "binary_name": "libdns-export1100",
            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm5"
          },
          {
            "binary_name": "libdns1100",
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          {
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            "binary_version": "1:9.11.3+dfsg-1ubuntu1.19+esm5"
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        "name": "bind9",
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        "1:9.11.3+dfsg-1ubuntu1.7",
        "1:9.11.3+dfsg-1ubuntu1.8",
        "1:9.11.3+dfsg-1ubuntu1.9",
        "1:9.11.3+dfsg-1ubuntu1.10",
        "1:9.11.3+dfsg-1ubuntu1.11",
        "1:9.11.3+dfsg-1ubuntu1.12",
        "1:9.11.3+dfsg-1ubuntu1.13",
        "1:9.11.3+dfsg-1ubuntu1.14",
        "1:9.11.3+dfsg-1ubuntu1.15",
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    },
    {
      "database_specific": {
        "cves_map": {
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            {
              "id": "CVE-2026-3039",
              "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-2026-3592",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-5946",
              "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:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "bind9",
            "binary_version": "1:9.18.30-0ubuntu0.20.04.2+esm2"
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            "binary_version": "1:9.18.30-0ubuntu0.20.04.2+esm2"
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            "binary_name": "bind9-libs",
            "binary_version": "1:9.18.30-0ubuntu0.20.04.2+esm2"
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            "binary_name": "bind9-utils",
            "binary_version": "1:9.18.30-0ubuntu0.20.04.2+esm2"
          },
          {
            "binary_name": "bind9utils",
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            "binary_name": "dnsutils",
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          }
        ]
      },
      "package": {
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            {
              "fixed": "1:9.18.30-0ubuntu0.20.04.2+esm2"
            }
          ],
          "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",
        "1:9.16.48-0ubuntu0.20.04.1",
        "1:9.18.28-0ubuntu0.20.04.1",
        "1:9.18.30-0ubuntu0.20.04.1",
        "1:9.18.30-0ubuntu0.20.04.2",
        "1:9.18.30-0ubuntu0.20.04.2+esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "Vitaly Simonovich discovered that Bind could exhaust memory during\nGSS-API TKEY negotiation. A remote attacker could possibly use this\nissue to cause Bind to use excessive resources, leading to a denial of\nservice. (CVE-2026-3039)\n\nShuhan Zhang discovered that Bind incorrectly handled self-pointed glue\nrecords. A remote attacker could possibly use this issue to use Bind in\ndenial of service amplification attacks against other systems.\nThis issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.\n(CVE-2026-3592)\n\nIt was discovered that Bind incorrectly handled DNS messages whose\nclass was not IN. A remote attacker could possibly use this issue to\ncause Bind to crash, resulting in a denial of service. This issue only\naffected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2026-5946)",
  "id": "USN-8682-1",
  "modified": "2026-08-26T16:49:52Z",
  "published": "2026-08-26T16:49:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8682-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3039"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-3592"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-5946"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bind9 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-3039",
    "UBUNTU-CVE-2026-3592",
    "UBUNTU-CVE-2026-5946"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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