CNVD-2018-07638

Vulnerability from cnvd - Published: 2018-04-13
VLAI
Title
Ruby拒绝服务漏洞（CNVD-2018-07638）
Description
Ruby是日本软件开发者松本行弘所研发的一种跨平台、面向对象的动态类型编程语言。WEBrick是其中的一个HTTP服务器组件。 Ruby中的WEBrick组件存在资源管理错误漏洞。远程攻击者可通过发送带有特制包头或主体的较大请求利用该漏洞造成拒绝服务（内存资源耗尽）。
Severity
中
Patch Name
Ruby拒绝服务漏洞（CNVD-2018-07638）的补丁
Patch Description
Ruby是日本软件开发者松本行弘所研发的一种跨平台、面向对象的动态类型编程语言。WEBrick是其中的一个HTTP服务器组件。 Ruby中的WEBrick组件存在资源管理错误漏洞。远程攻击者可通过发送带有特制包头或主体的较大请求利用该漏洞造成拒绝服务（内存资源耗尽）。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://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/

Reference
https://nvd.nist.gov/vuln/detail/CVE-2018-8777
Impacted products
Name
['Ruby Ruby <2.2.10', 'Ruby Ruby 2.6.0-preview1', 'Ruby Ruby 2.3.*，<2.3.7', 'Ruby Ruby 2.4.*，<2.4.4', 'Ruby Ruby 2.5.*，<2.5.1']
Show details on source website
To clipboard 

{
  "bids": {
    "bid": {
      "bidNumber": "103683"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8777"
    }
  },
  "description": "Ruby\u662f\u65e5\u672c\u8f6f\u4ef6\u5f00\u53d1\u8005\u677e\u672c\u884c\u5f18\u6240\u7814\u53d1\u7684\u4e00\u79cd\u8de8\u5e73\u53f0\u3001\u9762\u5411\u5bf9\u8c61\u7684\u52a8\u6001\u7c7b\u578b\u7f16\u7a0b\u8bed\u8a00\u3002WEBrick\u662f\u5176\u4e2d\u7684\u4e00\u4e2aHTTP\u670d\u52a1\u5668\u7ec4\u4ef6\u3002\r\n\r\nRuby\u4e2d\u7684WEBrick\u7ec4\u4ef6\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u5e26\u6709\u7279\u5236\u5305\u5934\u6216\u4e3b\u4f53\u7684\u8f83\u5927\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u8d44\u6e90\u8017\u5c3d\uff09\u3002",
  "discovererName": "Eric Wong",
  "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://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-07638",
  "openTime": "2018-04-13",
  "patchDescription": "Ruby\u662f\u65e5\u672c\u8f6f\u4ef6\u5f00\u53d1\u8005\u677e\u672c\u884c\u5f18\u6240\u7814\u53d1\u7684\u4e00\u79cd\u8de8\u5e73\u53f0\u3001\u9762\u5411\u5bf9\u8c61\u7684\u52a8\u6001\u7c7b\u578b\u7f16\u7a0b\u8bed\u8a00\u3002WEBrick\u662f\u5176\u4e2d\u7684\u4e00\u4e2aHTTP\u670d\u52a1\u5668\u7ec4\u4ef6\u3002\r\n\r\nRuby\u4e2d\u7684WEBrick\u7ec4\u4ef6\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u5e26\u6709\u7279\u5236\u5305\u5934\u6216\u4e3b\u4f53\u7684\u8f83\u5927\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u8d44\u6e90\u8017\u5c3d\uff09\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": "Ruby\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-07638\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Ruby Ruby \u003c2.2.10",
      "Ruby Ruby 2.6.0-preview1",
      "Ruby Ruby 2.3.*\uff0c\u003c2.3.7",
      "Ruby Ruby 2.4.*\uff0c\u003c2.4.4",
      "Ruby Ruby 2.5.*\uff0c\u003c2.5.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2018-8777",
  "serverity": "\u4e2d",
  "submitTime": "2018-04-04",
  "title": "Ruby\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-07638\uff09"
}



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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 confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

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