cnvd-2021-76471
Vulnerability from cnvd
Title
Microsoft Windows Server拒绝服务漏洞（CNVD-2021-76471）
Description
Windows Server是微软发布的一系列服务器操作系统的品牌名，它包括所有以“Windows Server”为品牌发布的Windows操作系统。 Microsoft Windows Server存在拒绝服务漏洞，该漏洞源于Windows DNS未能正确处理查询，攻击者可通过向目标发送恶意DNS查询利用该漏洞导致DNS服务无响应。
Severity
中
Patch Name
Microsoft Windows Server拒绝服务漏洞（CNVD-2021-76471）的补丁
Patch Description
Windows Server是微软发布的一系列服务器操作系统的品牌名，它包括所有以“Windows Server”为品牌发布的Windows操作系统。 Microsoft Windows Server存在拒绝服务漏洞，该漏洞源于Windows DNS未能正确处理查询，攻击者可通过向目标发送恶意DNS查询利用该漏洞导致DNS服务无响应。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0836

Reference
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0836
Impacted products
Name
['Microsoft Windows Server 2008 R2 SP1', 'Microsoft Windows Server 2008 SP2', 'Microsoft Windows Server 2012 R2', 'Microsoft Windows Server 2016', 'Microsoft Windows Server 2019', 'Microsoft Microsoft Windows Server 1903', 'Microsoft Microsoft Windows Server 1909', 'Microsoft Windows Server 2004', 'Microsoft Windows Server 2012']
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-0836",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-0836"
    }
  },
  "description": "Windows Server\u662f\u5fae\u8f6f\u53d1\u5e03\u7684\u4e00\u7cfb\u5217\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\u7684\u54c1\u724c\u540d\uff0c\u5b83\u5305\u62ec\u6240\u6709\u4ee5\u201cWindows Server\u201d\u4e3a\u54c1\u724c\u53d1\u5e03\u7684Windows\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nMicrosoft Windows Server\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eWindows DNS\u672a\u80fd\u6b63\u786e\u5904\u7406\u67e5\u8be2\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u76ee\u6807\u53d1\u9001\u6076\u610fDNS\u67e5\u8be2\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4DNS\u670d\u52a1\u65e0\u54cd\u5e94\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0836",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-76471",
  "openTime": "2021-10-12",
  "patchDescription": "Windows Server\u662f\u5fae\u8f6f\u53d1\u5e03\u7684\u4e00\u7cfb\u5217\u670d\u52a1\u5668\u64cd\u4f5c\u7cfb\u7edf\u7684\u54c1\u724c\u540d\uff0c\u5b83\u5305\u62ec\u6240\u6709\u4ee5\u201cWindows Server\u201d\u4e3a\u54c1\u724c\u53d1\u5e03\u7684Windows\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nMicrosoft Windows Server\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eWindows DNS\u672a\u80fd\u6b63\u786e\u5904\u7406\u67e5\u8be2\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u76ee\u6807\u53d1\u9001\u6076\u610fDNS\u67e5\u8be2\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4DNS\u670d\u52a1\u65e0\u54cd\u5e94\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Microsoft Windows Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-76471\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Microsoft Windows Server 2008 R2 SP1",
      "Microsoft Windows Server 2008 SP2",
      "Microsoft Windows Server 2012 R2",
      "Microsoft Windows Server 2016",
      "Microsoft Windows Server 2019",
      "Microsoft Microsoft Windows Server 1903",
      "Microsoft Microsoft Windows Server 1909",
      "Microsoft Windows Server 2004",
      "Microsoft Windows Server 2012"
    ]
  },
  "referenceLink": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0836",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-10",
  "title": "Microsoft Windows Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-76471\uff09"
}


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