{
  "fix": "RLSA-2024:1781",
  "url": "https://patchblox.com/security/fix/linux/rlsa-2024-1781",
  "summary": "RLSA-2024:1781, released May 6, 2024, fixes 6 CVEs in bind9.16 (version 2:9.16.23-0.16.el8_9.2). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "bind9.16 security update",
  "released": "2024-05-06T13:04:21Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2023-50387, high severity",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.9999,
  "maxCvss": 7.5,
  "vendorAdvisory": "https://errata.rockylinux.org/RLSA-2024:1781",
  "appliesTo": [
    {
      "product": "bind9.16",
      "productUrl": "https://patchblox.com/security/product/linux/bind9.16",
      "release": "rocky 8",
      "fixedVersion": "2:9.16.23-0.16.el8_9.2",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-50387",
      "url": "https://patchblox.com/security/cve/CVE-2023-50387",
      "title": "MITRE: CVE-2023-50387 DNSSEC verification complexity can be exploited to exhaust CPU resources and stall DNS resolvers",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.9999,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-50868",
      "url": "https://patchblox.com/security/cve/CVE-2023-50868",
      "title": "MITRE: CVE-2023-50868 NSEC3 closest encloser proof can exhaust CPU",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.74295,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": true
    },
    {
      "cveId": "CVE-2023-4408",
      "url": "https://patchblox.com/security/cve/CVE-2023-4408",
      "title": "bind: This update for bind fixes the following issues:\n\n - CVE-2023-4408: Fixed denial of service during DNS message parsin...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.01387,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5517",
      "url": "https://patchblox.com/security/cve/CVE-2023-5517",
      "title": "bind9: A flaw in query-handling code can cause \u0060named\u0060 to exit prematurely with an assertion failure when:   - \u0060nxdomain-red...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.5,
      "epss": 0.01276,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5679",
      "url": "https://patchblox.com/security/cve/CVE-2023-5679",
      "title": "bind9: A bad interaction between DNS64 and serve-stale may cause \u0060named\u0060 to crashwith an assertion failure during recursive...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.5,
      "epss": 0.01276,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-6516",
      "url": "https://patchblox.com/security/cve/CVE-2023-6516",
      "title": "bind: This update for bind fixes the following issues:\n\n - CVE-2023-4408: Fixed denial of service during DNS message parsin...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.5,
      "epss": 0.01097,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}