cnvd - cnvd-2021-26108

cnvd-2021-26108

Vulnerability from cnvd

Title: Gitlab Community Edition存在未明漏洞

Description:

GitLab是美国GitLab公司的一款使用Ruby on Rails开发的、自托管的、Git（版本控制系统）项目仓库应用程序。该程序可用于查阅项目的文件内容、提交历史、Bug列表等。

Gitlab Community Edition 13.7.1-1版本至13.7.2-1版本存在安全漏洞，该漏洞源于用于包名的正则表达式的编写方式使执行时间根据恶意输入字符串的长度呈二次增长，攻击者可利用该漏洞形成时间消耗从而达到拒绝服务目的。

Severity: 中

Patch Name: Gitlab Community Edition存在未明漏洞的补丁

Patch Description:

Gitlab Community Edition 13.7.1-1版本至13.7.2-1版本存在安全漏洞，该漏洞源于用于包名的正则表达式的编写方式使执行时间根据恶意输入字符串的长度呈二次增长，攻击者可利用该漏洞形成时间消耗从而达到拒绝服务目的。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:

厂商已发布了漏洞修复程序，请及时关注更新： https://about.gitlab.com/releases/2021/01/07/security-release-gitlab-13-7-2-released/#regular-expression-denial-of-service-in-package-uploads

Reference: https://www.auscert.org.au/bulletins/ESB-2021.0086/

Impacted products

Name
GitLab Gitlab Community Edition >=13.7.1-1，<=13.7.2-1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-26414",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-26414"
    }
  },
  "description": "GitLab\u662f\u7f8e\u56fdGitLab\u516c\u53f8\u7684\u4e00\u6b3e\u4f7f\u7528Ruby on Rails\u5f00\u53d1\u7684\u3001\u81ea\u6258\u7ba1\u7684\u3001Git\uff08\u7248\u672c\u63a7\u5236\u7cfb\u7edf\uff09\u9879\u76ee\u4ed3\u5e93\u5e94\u7528\u7a0b\u5e8f\u3002\u8be5\u7a0b\u5e8f\u53ef\u7528\u4e8e\u67e5\u9605\u9879\u76ee\u7684\u6587\u4ef6\u5185\u5bb9\u3001\u63d0\u4ea4\u5386\u53f2\u3001Bug\u5217\u8868\u7b49\u3002\n\nGitlab Community Edition 13.7.1-1\u7248\u672c\u81f313.7.2-1\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u4e8e\u5305\u540d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u7f16\u5199\u65b9\u5f0f\u4f7f\u6267\u884c\u65f6\u95f4\u6839\u636e\u6076\u610f\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u5448\u4e8c\u6b21\u589e\u957f\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f62\u6210\u65f6\u95f4\u6d88\u8017\u4ece\u800c\u8fbe\u5230\u62d2\u7edd\u670d\u52a1\u76ee\u7684\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://about.gitlab.com/releases/2021/01/07/security-release-gitlab-13-7-2-released/#regular-expression-denial-of-service-in-package-uploads",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-26108",
  "openTime": "2021-04-09",
  "patchDescription": "GitLab\u662f\u7f8e\u56fdGitLab\u516c\u53f8\u7684\u4e00\u6b3e\u4f7f\u7528Ruby on Rails\u5f00\u53d1\u7684\u3001\u81ea\u6258\u7ba1\u7684\u3001Git\uff08\u7248\u672c\u63a7\u5236\u7cfb\u7edf\uff09\u9879\u76ee\u4ed3\u5e93\u5e94\u7528\u7a0b\u5e8f\u3002\u8be5\u7a0b\u5e8f\u53ef\u7528\u4e8e\u67e5\u9605\u9879\u76ee\u7684\u6587\u4ef6\u5185\u5bb9\u3001\u63d0\u4ea4\u5386\u53f2\u3001Bug\u5217\u8868\u7b49\u3002\r\n\r\nGitlab Community Edition 13.7.1-1\u7248\u672c\u81f313.7.2-1\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u4e8e\u5305\u540d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u7f16\u5199\u65b9\u5f0f\u4f7f\u6267\u884c\u65f6\u95f4\u6839\u636e\u6076\u610f\u8f93\u5165\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u5448\u4e8c\u6b21\u589e\u957f\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5f62\u6210\u65f6\u95f4\u6d88\u8017\u4ece\u800c\u8fbe\u5230\u62d2\u7edd\u670d\u52a1\u76ee\u7684\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": "Gitlab Community Edition\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "GitLab Gitlab Community Edition \u003e=13.7.1-1\uff0c\u003c=13.7.2-1"
  },
  "referenceLink": "https://www.auscert.org.au/bulletins/ESB-2021.0086/",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-12",
  "title": "Gitlab Community Edition\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2020-26414 (GCVE-0-2020-26414)

Vulnerability from cvelistv5

Published

2021-01-15 15:15

Modified

2024-08-04 15:56

Severity ?

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CWE

Incorrect regular expression in GitLab

Summary

An issue has been discovered in GitLab affecting all versions starting from 12.4. The regex used for package names is written in a way that makes execution time have quadratic growth based on the length of the malicious input string.

References

▼	URL	Tags
	https://gitlab.com/gitlab-org/gitlab/-/issues/270199	x_refsource_MISC
	https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26414.json	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	GitLab	GitLab	Version: >=12.4, <13.5.6 Version: >=13.6.0, <13.6.4 Version: >=13.7.0, <13.7.2

Show details on NVD website

JSON

To clipboard

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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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