cnvd-2021-92474
Vulnerability from cnvd
Title
LibreCad缓冲区溢出漏洞
Description
LibreCAD是LibreCAD组织的一款开源的CAD（计算机辅助设计）应用程序。 LibreCad libdxfrw 中存在缓冲区溢出漏洞，该漏洞源于产品的 dwgCompressor：：decompress18 函数未能正确处理特殊的输入数据。攻击者可通过该漏洞导致堆缓冲区溢出。
Severity
中
Patch Name
LibreCad缓冲区溢出漏洞的补丁
Patch Description
LibreCAD是LibreCAD组织的一款开源的CAD（计算机辅助设计）应用程序。 LibreCad libdxfrw 中存在缓冲区溢出漏洞，该漏洞源于产品的 dwgCompressor：：decompress18 函数未能正确处理特殊的输入数据。攻击者可通过该漏洞导致堆缓冲区溢出。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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://librecad.org/

Reference
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1349
Impacted products
Name
LibreCAD libdxfrw 2.2.0-rc2-19-ge02f3580
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21898"
    }
  },
  "description": "LibreCAD\u662fLibreCAD\u7ec4\u7ec7\u7684\u4e00\u6b3e\u5f00\u6e90\u7684CAD\uff08\u8ba1\u7b97\u673a\u8f85\u52a9\u8bbe\u8ba1\uff09\u5e94\u7528\u7a0b\u5e8f\u3002\n\nLibreCad libdxfrw \u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u7684 dwgCompressor\uff1a\uff1adecompress18 \u51fd\u6570\u672a\u80fd\u6b63\u786e\u5904\u7406\u7279\u6b8a\u7684\u8f93\u5165\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://librecad.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-92474",
  "openTime": "2021-11-30",
  "patchDescription": "LibreCAD\u662fLibreCAD\u7ec4\u7ec7\u7684\u4e00\u6b3e\u5f00\u6e90\u7684CAD\uff08\u8ba1\u7b97\u673a\u8f85\u52a9\u8bbe\u8ba1\uff09\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nLibreCad libdxfrw \u4e2d\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u7684 dwgCompressor\uff1a\uff1adecompress18 \u51fd\u6570\u672a\u80fd\u6b63\u786e\u5904\u7406\u7279\u6b8a\u7684\u8f93\u5165\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5806\u7f13\u51b2\u533a\u6ea2\u51fa\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": "LibreCad\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "LibreCAD libdxfrw 2.2.0-rc2-19-ge02f3580"
  },
  "referenceLink": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1349",
  "serverity": "\u4e2d",
  "submitTime": "2021-11-22",
  "title": "LibreCad\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}


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