cnvd-2020-36791
Vulnerability from cnvd
Title
LibVNCServer存在未明漏洞
Description
LibVNCServer是一款支持在程序中实现VNC（虚拟网络计算）服务器或客户端功能的跨平台C语言库。 LibVNCServer 0.9.13之前版本中的libvncclient/rfbproto.c文件存在安全漏洞，该漏洞源于程序未限制TextChat的大小。目前没有详细的漏洞细节提供。
Severity
高
Patch Name
LibVNCServer存在未明漏洞的补丁
Patch Description
LibVNCServer是一款支持在程序中实现VNC（虚拟网络计算）服务器或客户端功能的跨平台C语言库。 LibVNCServer 0.9.13之前版本中的libvncclient/rfbproto.c文件存在安全漏洞，该漏洞源于程序未限制TextChat的大小。目前没有详细的漏洞细节提供。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，补丁获取链接： https://github.com/LibVNC/libvncserver/commit/8937203441ee241c4ace85da687b7d6633a12365

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-14405
Impacted products
Name
LibVNCServer LibVNCServer <0.9.13
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-14405"
    }
  },
  "description": "LibVNCServer\u662f\u4e00\u6b3e\u652f\u6301\u5728\u7a0b\u5e8f\u4e2d\u5b9e\u73b0VNC\uff08\u865a\u62df\u7f51\u7edc\u8ba1\u7b97\uff09\u670d\u52a1\u5668\u6216\u5ba2\u6237\u7aef\u529f\u80fd\u7684\u8de8\u5e73\u53f0C\u8bed\u8a00\u5e93\u3002\n\nLibVNCServer 0.9.13\u4e4b\u524d\u7248\u672c\u4e2d\u7684libvncclient/rfbproto.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u9650\u5236TextChat\u7684\u5927\u5c0f\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/LibVNC/libvncserver/commit/8937203441ee241c4ace85da687b7d6633a12365",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-36791",
  "openTime": "2020-07-07",
  "patchDescription": "LibVNCServer\u662f\u4e00\u6b3e\u652f\u6301\u5728\u7a0b\u5e8f\u4e2d\u5b9e\u73b0VNC\uff08\u865a\u62df\u7f51\u7edc\u8ba1\u7b97\uff09\u670d\u52a1\u5668\u6216\u5ba2\u6237\u7aef\u529f\u80fd\u7684\u8de8\u5e73\u53f0C\u8bed\u8a00\u5e93\u3002\r\n\r\nLibVNCServer 0.9.13\u4e4b\u524d\u7248\u672c\u4e2d\u7684libvncclient/rfbproto.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u9650\u5236TextChat\u7684\u5927\u5c0f\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "LibVNCServer\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "LibVNCServer LibVNCServer \u003c0.9.13"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-14405",
  "serverity": "\u9ad8",
  "submitTime": "2020-06-18",
  "title": "LibVNCServer\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}


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