cnvd-2021-19758
Vulnerability from cnvd
Title: Nut/OS拒绝服务和远程代码执行漏洞(CNVD-2021-19758)
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。该漏洞源于未检查域名是否以'0'结尾。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-2021-19758)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。该漏洞源于未检查域名是否以'0'结尾。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-2020-25107
Impacted products
Name | Nut/OS Nut/OS 5.1 |
---|
{ "cves": { "cve": { "cveNumber": "CVE-2020-25107", "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25107" } }, "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\u672a\u68c0\u67e5\u57df\u540d\u662f\u5426\u4ee5\u00270\u0027\u7ed3\u5c3e\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-2021-19758", "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\u672a\u68c0\u67e5\u57df\u540d\u662f\u5426\u4ee5\u00270\u0027\u7ed3\u5c3e\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-2021-19758\uff09\u7684\u8865\u4e01", "products": { "product": "Nut/OS Nut/OS 5.1" }, "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25107", "serverity": "\u9ad8", "submitTime": "2020-12-14", "title": "Nut/OS\u62d2\u7edd\u670d\u52a1\u548c\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff08CNVD-2021-19758\uff09" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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