{
  "fix": "RHSA-2024:2551",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2551",
  "summary": "RHSA-2024:2551, released April 30, 2024, fixes 6 CVEs across 11 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 11 packages",
  "released": "2024-04-30T00:00:00Z",
  "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://access.redhat.com/errata/RHSA-2024:2551",
  "appliesTo": [
    {
      "product": "bind",
      "productUrl": "https://patchblox.com/security/product/linux/bind",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-chroot",
      "productUrl": "https://patchblox.com/security/product/linux/bind-chroot",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-devel",
      "productUrl": "https://patchblox.com/security/product/linux/bind-devel",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-dnssec-doc",
      "productUrl": "https://patchblox.com/security/product/linux/bind-dnssec-doc",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-dnssec-utils",
      "productUrl": "https://patchblox.com/security/product/linux/bind-dnssec-utils",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-doc",
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      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-dyndb-ldap",
      "productUrl": "https://patchblox.com/security/product/linux/bind-dyndb-ldap",
      "release": "RHEL 9",
      "fixedVersion": "0:11.9-9.el9_4",
      "supported": true
    },
    {
      "product": "bind-libs",
      "productUrl": "https://patchblox.com/security/product/linux/bind-libs",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-license",
      "productUrl": "https://patchblox.com/security/product/linux/bind-license",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "bind-utils",
      "productUrl": "https://patchblox.com/security/product/linux/bind-utils",
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      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "supported": true
    },
    {
      "product": "python3-bind",
      "productUrl": "https://patchblox.com/security/product/linux/python3-bind",
      "release": "RHEL 9",
      "fixedVersion": "32:9.16.23-18.el9_4.1",
      "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,
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      "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": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}