cnvd-2021-19760
Vulnerability from cnvd
Title
Nut/OS拒绝服务和远程代码执行漏洞（CNVD-2021-19760）
Description
Nut/OS是用于嵌入式平台的模块化、开源实时操作系统。 Nut/OS 5.1中的Ethernut中的DNS实现存在拒绝服务和远程代码执行漏洞。该漏洞源于没有对照现有数据检查DNS查询/响应的数量。攻击者可利用该漏洞导致拒绝服务及实现远程代码执行。
Severity
高
Patch Name
Nut/OS拒绝服务和远程代码执行漏洞（CNVD-2021-19760）的补丁
Patch Description
Nut/OS是用于嵌入式平台的模块化、开源实时操作系统。 Nut/OS 5.1中的Ethernut中的DNS实现存在拒绝服务和远程代码执行漏洞。该漏洞源于没有对照现有数据检查DNS查询/响应的数量。攻击者可利用该漏洞导致拒绝服务及实现远程代码执行。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://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-25109
Impacted products
Name
Nut/OS Nut/OS 5.1
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-25109",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25109"
    }
  },
  "description": "Nut/OS\u662f\u7528\u4e8e\u5d4c\u5165\u5f0f\u5e73\u53f0\u7684\u6a21\u5757\u5316\u3001\u5f00\u6e90\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nNut/OS 5.1\u4e2d\u7684Ethernut\u4e2d\u7684DNS\u5b9e\u73b0\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u548c\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6ca1\u6709\u5bf9\u7167\u73b0\u6709\u6570\u636e\u68c0\u67e5DNS\u67e5\u8be2/\u54cd\u5e94\u7684\u6570\u91cf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u53ca\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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://us-cert.cisa.gov/ics/advisories/icsa-20-343-01",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-19760",
  "openTime": "2021-03-22",
  "patchDescription": "Nut/OS\u662f\u7528\u4e8e\u5d4c\u5165\u5f0f\u5e73\u53f0\u7684\u6a21\u5757\u5316\u3001\u5f00\u6e90\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nNut/OS 5.1\u4e2d\u7684Ethernut\u4e2d\u7684DNS\u5b9e\u73b0\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u548c\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u6ca1\u6709\u5bf9\u7167\u73b0\u6709\u6570\u636e\u68c0\u67e5DNS\u67e5\u8be2/\u54cd\u5e94\u7684\u6570\u91cf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u53ca\u5b9e\u73b0\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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": "Nut/OS\u62d2\u7edd\u670d\u52a1\u548c\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-19760\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Nut/OS Nut/OS 5.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25109",
  "serverity": "\u9ad8",
  "submitTime": "2020-12-14",
  "title": "Nut/OS\u62d2\u7edd\u670d\u52a1\u548c\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-19760\uff09"
}


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