{
  "document": {
    "aggregate_severity": {
      "text": "High"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
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        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
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      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
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        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/oraclelinux6els/vex/2019/cve-2019-16866-els_os-oraclelinux6els.json"
      }
    ],
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      "current_release_date": "2026-10-28T11:32:52Z",
      "generator": {
        "date": "2026-10-28T11:32:52Z",
        "engine": {
          "name": "pyCSAF"
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      "id": "CVE-2019-16866-ELS_OS-ORACLELINUX6ELS",
      "initial_release_date": "2019-10-03T19:15:00Z",
      "revision_history": [
        {
          "date": "2019-10-03T19:15:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-10-28T11:32:52Z",
          "number": "2",
          "summary": "Official Publication"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2019-16866"
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-16866",
      "cwe": {
        "id": "CWE-755",
        "name": "Improper Handling of Exceptional Conditions"
      },
      "notes": [
        {
          "category": "description",
          "text": "Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.",
          "title": "Vulnerability description"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
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        ]
      },
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          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2019-16866"
        },
        {
          "category": "external",
          "summary": "https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog",
          "url": "https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/"
        },
        {
          "category": "external",
          "summary": "https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt",
          "url": "https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt"
        },
        {
          "category": "external",
          "summary": "https://seclists.org/bugtraq/2019/Oct/23",
          "url": "https://seclists.org/bugtraq/2019/Oct/23"
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          "summary": "https://usn.ubuntu.com/4149-1/",
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        {
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          "summary": "https://www.debian.org/security/2019/dsa-4544",
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        }
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      "release_date": "2019-10-03T19:15:00Z",
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          "category": "impact",
          "details": "Important"
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          "date": "2026-10-16T00:18:17.881549Z",
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}