{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "<a href=\"https://twitter.com/trueunitysect\">Quan Luo </a> with Codesafe Team of QI-ANXIN Legendsec Group\n"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2023-28234 Windows Secure Channel Denial of Service Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28234"
      },
      {
        "category": "self",
        "summary": "CVE-2023-28234 Windows Secure Channel Denial of Service Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-28234.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Windows Secure Channel Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2023-04-11T07:00:00.000Z",
      "generator": {
        "date": "2025-01-23T01:04:30.338Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-28234",
      "initial_release_date": "2023-04-11T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-04-11T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.20348.1668",
            "product": {
              "name": "Windows Server 2022 <10.0.20348.1668",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.1668",
            "product": {
              "name": "Windows Server 2022 10.0.20348.1668",
              "product_id": "11923"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2022"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.20348.1668",
            "product": {
              "name": "Windows Server 2022 (Server Core installation) <10.0.20348.1668",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.1668",
            "product": {
              "name": "Windows Server 2022 (Server Core installation) 10.0.20348.1668",
              "product_id": "11924"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2022 (Server Core installation)"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.22000.1817",
            "product": {
              "name": "Windows 11 version 21H2 for x64-based Systems <10.0.22000.1817",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22000.1817",
            "product": {
              "name": "Windows 11 version 21H2 for x64-based Systems 10.0.22000.1817",
              "product_id": "11926"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 version 21H2 for x64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.22000.1817",
            "product": {
              "name": "Windows 11 version 21H2 for ARM64-based Systems <10.0.22000.1817",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22000.1817",
            "product": {
              "name": "Windows 11 version 21H2 for ARM64-based Systems 10.0.22000.1817",
              "product_id": "11927"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 version 21H2 for ARM64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.22621.1555",
            "product": {
              "name": "Windows 11 Version 22H2 for ARM64-based Systems <10.0.22621.1555",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22621.1555",
            "product": {
              "name": "Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.1555",
              "product_id": "12085"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 22H2 for ARM64-based Systems"
      },
      {
        "branches": [
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            "category": "product_version_range",
            "name": "<10.0.22621.1555",
            "product": {
              "name": "Windows 11 Version 22H2 for x64-based Systems <10.0.22621.1555",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22621.1555",
            "product": {
              "name": "Windows 11 Version 22H2 for x64-based Systems 10.0.22621.1555",
              "product_id": "12086"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 22H2 for x64-based Systems"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-28234",
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "No. Only those devices running TLS 1.3 are affected. For more information on supported TLS implementations please visit: https://learn.microsoft.com/en-us/windows/win32/secauthn/protocols-in-tls-ssl--schannel-ssp-",
          "title": "Does this vulnerability affect all versions of TLS?"
        }
      ],
      "product_status": {
        "fixed": [
          "11923",
          "11924",
          "11926",
          "11927",
          "12085",
          "12086"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-28234 Windows Secure Channel Denial of Service Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28234"
        },
        {
          "category": "self",
          "summary": "CVE-2023-28234 Windows Secure Channel Denial of Service Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-28234"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-04-11T07:00:00.000Z",
          "details": "10.0.20348.1668:Security Update:https://support.microsoft.com/help/5025230",
          "product_ids": [
            "6",
            "5"
          ],
          "url": "https://support.microsoft.com/help/5025230"
        },
        {
          "category": "vendor_fix",
          "date": "2023-04-11T07:00:00.000Z",
          "details": "10.0.22000.1817:Security Update:https://support.microsoft.com/help/5025224",
          "product_ids": [
            "4",
            "3"
          ],
          "url": "https://support.microsoft.com/help/5025224"
        },
        {
          "category": "vendor_fix",
          "date": "2023-04-11T07:00:00.000Z",
          "details": "10.0.22621.1555:Security Update:https://support.microsoft.com/help/5025239",
          "product_ids": [
            "2",
            "1"
          ],
          "url": "https://support.microsoft.com/help/5025239"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.5,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Denial of Service"
        },
        {
          "category": "exploit_status",
          "details": "Exploited:No;Latest Software Release:Exploitation Less Likely"
        }
      ],
      "title": "Windows Secure Channel Denial of Service Vulnerability"
    }
  ]
}