{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Hong Hai with Alibaba Orion Security Lab"
        ]
      }
    ],
    "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-2023-35298 HTTP.sys Denial of Service Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35298"
      },
      {
        "category": "self",
        "summary": "CVE-2023-35298 HTTP.sys Denial of Service Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/2023/msrc_cve-2023-35298.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": "HTTP.sys Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2023-07-11T07:00:00.000Z",
      "generator": {
        "date": "2025-01-01T01:51:50.911Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2023-35298",
      "initial_release_date": "2023-07-11T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2023-07-11T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.20348.1850",
            "product": {
              "name": "Windows Server 2022 <10.0.20348.1850",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.1850",
            "product": {
              "name": "Windows Server 2022 10.0.20348.1850",
              "product_id": "11923"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows Server 2022"
      },
      {
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            "category": "product_version_range",
            "name": "<10.0.20348.1850",
            "product": {
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              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.20348.1850",
            "product": {
              "name": "Windows Server 2022 (Server Core installation) 10.0.20348.1850",
              "product_id": "11924"
            }
          }
        ],
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        "name": "Windows Server 2022 (Server Core installation)"
      },
      {
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          {
            "category": "product_version_range",
            "name": "<10.0.22000.2176",
            "product": {
              "name": "Windows 11 version 21H2 for x64-based Systems <10.0.22000.2176",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22000.2176",
            "product": {
              "name": "Windows 11 version 21H2 for x64-based Systems 10.0.22000.2176",
              "product_id": "11926"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 version 21H2 for x64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.22000.2176",
            "product": {
              "name": "Windows 11 version 21H2 for ARM64-based Systems <10.0.22000.2176",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22000.2176",
            "product": {
              "name": "Windows 11 version 21H2 for ARM64-based Systems 10.0.22000.2176",
              "product_id": "11927"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 version 21H2 for ARM64-based Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "<10.0.22621.1992",
            "product": {
              "name": "Windows 11 Version 22H2 for ARM64-based Systems <10.0.22621.1992",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22621.1992",
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          }
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              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "10.0.22621.1992",
            "product": {
              "name": "Windows 11 Version 22H2 for x64-based Systems 10.0.22621.1992",
              "product_id": "12086"
            }
          }
        ],
        "category": "product_name",
        "name": "Windows 11 Version 22H2 for x64-based Systems"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-35298",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "In most situations, an unauthenticated attacker could send a specially crafted packet to a targeted server utilizing the Server Name Indication (SNI) over HTTP Protocol Stack (http.sys) to process packets, causing a denial of service (DOS).",
          "title": "How could an attacker exploit this vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "11923",
          "11924",
          "11926",
          "11927",
          "12085",
          "12086"
        ],
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          "1",
          "2",
          "3",
          "4",
          "5",
          "6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2023-35298 HTTP.sys Denial of Service Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35298"
        },
        {
          "category": "self",
          "summary": "CVE-2023-35298 HTTP.sys Denial of Service Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35298"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-07-11T07:00:00.000Z",
          "details": "10.0.20348.1850:Security Update:https://support.microsoft.com/help/5028171",
          "product_ids": [
            "6",
            "5"
          ],
          "url": "https://support.microsoft.com/help/5028171"
        },
        {
          "category": "vendor_fix",
          "date": "2023-07-11T07:00:00.000Z",
          "details": "10.0.22000.2176:Security Update:https://support.microsoft.com/help/5028182",
          "product_ids": [
            "4",
            "3"
          ],
          "url": "https://support.microsoft.com/help/5028182"
        },
        {
          "category": "vendor_fix",
          "date": "2023-07-11T07:00:00.000Z",
          "details": "10.0.22621.1992:Security Update:https://support.microsoft.com/help/5028185",
          "product_ids": [
            "2",
            "1"
          ],
          "url": "https://support.microsoft.com/help/5028185"
        }
      ],
      "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": "HTTP.sys Denial of Service Vulnerability"
    }
  ]
}