cnvd-2018-07638
Vulnerability from cnvd
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'] |
|---|
{
"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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Sightings
| Author | Source | Type | Date |
|---|
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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