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CNVD-2020-33778

Vulnerability from cnvd - Published: 2020-06-21
VLAI
Title
Netty缓冲区溢出漏洞
Description
Netty是Netty社区的一款非阻塞I/O客户端-服务器框架，它主要用于开发Java网络应用程序，如协议服务器和客户端等。 Netty 4.1.46之前的4.1.x版本中的ZlibDecoders存在缓冲区溢出漏洞，该漏洞源于程序在解码ZlibEncoded字节流时未能限制内存分配。攻击者可通过发送大量ZlibEncoded字节流到Netty服务器利用该漏洞占用资源，导致拒绝服务。
Severity
高
Patch Name
Netty缓冲区溢出漏洞的补丁
Patch Description
Netty是Netty社区的一款非阻塞I/O客户端-服务器框架，它主要用于开发Java网络应用程序，如协议服务器和客户端等。 Netty 4.1.46之前的4.1.x版本中的ZlibDecoders存在缓冲区溢出漏洞，该漏洞源于程序在解码ZlibEncoded字节流时未能限制内存分配。攻击者可通过发送大量ZlibEncoded字节流到Netty服务器利用该漏洞占用资源，导致拒绝服务。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/netty/netty/pull/9924

Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-11612
Impacted products
Name
Netty Netty 4.1.*，<4.1.46
Show details on source website
To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-11612"
    }
  },
  "description": "Netty\u662fNetty\u793e\u533a\u7684\u4e00\u6b3e\u975e\u963b\u585eI/O\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6846\u67b6\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u5f00\u53d1Java\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\uff0c\u5982\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7b49\u3002\n\nNetty 4.1.46\u4e4b\u524d\u76844.1.x\u7248\u672c\u4e2d\u7684ZlibDecoders\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u89e3\u7801ZlibEncoded\u5b57\u8282\u6d41\u65f6\u672a\u80fd\u9650\u5236\u5185\u5b58\u5206\u914d\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u5927\u91cfZlibEncoded\u5b57\u8282\u6d41\u5230Netty\u670d\u52a1\u5668\u5229\u7528\u8be5\u6f0f\u6d1e\u5360\u7528\u8d44\u6e90\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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/netty/netty/pull/9924",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-33778",
  "openTime": "2020-06-21",
  "patchDescription": "Netty\u662fNetty\u793e\u533a\u7684\u4e00\u6b3e\u975e\u963b\u585eI/O\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6846\u67b6\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u5f00\u53d1Java\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f\uff0c\u5982\u534f\u8bae\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7b49\u3002\r\n\r\nNetty 4.1.46\u4e4b\u524d\u76844.1.x\u7248\u672c\u4e2d\u7684ZlibDecoders\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u89e3\u7801ZlibEncoded\u5b57\u8282\u6d41\u65f6\u672a\u80fd\u9650\u5236\u5185\u5b58\u5206\u914d\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u5927\u91cfZlibEncoded\u5b57\u8282\u6d41\u5230Netty\u670d\u52a1\u5668\u5229\u7528\u8be5\u6f0f\u6d1e\u5360\u7528\u8d44\u6e90\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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": "Netty\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Netty Netty 4.1.*\uff0c\u003c4.1.46"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-11612",
  "serverity": "\u9ad8",
  "submitTime": "2020-04-08",
  "title": "Netty\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}



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Nomenclature

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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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