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CVE-2021-39914

Quick assessment

Affected
GitLab GitLab
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Alfresco Community Edition是美国Alfresco公司的一套开源的企业内容管理系统的社区版。该系统包括文档管理、办公协作等功能。 Alfresco Community Edition 存在资源管理错误漏洞，该漏洞源于清理命名空间路径时的正则表达式拒绝服务问题 GitLab 版本 8.13 到 14.2.5 中的正则表达式拒绝服务问题，当在配置新用户时使用特制的用户名时，14.3.0 到 14.3.3 和 14.4.0 可能会导致过度使用资源。

CVSS 3.1 · Low EPSS 1.20% · P67

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-39914

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Alfresco Software Alfresco Community Edition 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Alfresco Community Edition是美国Alfresco公司的一套开源的企业内容管理系统的社区版。该系统包括文档管理、办公协作等功能。 Alfresco Community Edition 存在资源管理错误漏洞，该漏洞源于清理命名空间路径时的正则表达式拒绝服务问题 GitLab 版本 8.13 到 14.2.5 中的正则表达式拒绝服务问题，当在配置新用户时使用特制的用户名时，14.3.0 到 14.3.3 和 14.4.0 可能会导致过度使用资源。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab >=8.13, <14.2.6 -

II. Public POCs for CVE-2021-39914

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III. Intelligence Information for CVE-2021-39914

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Other References for CVE-2021-39914 (2)

Same Patch Batch · GitLab · 2021-11-04 · 16 CVEs total

CVE-2021-39906 8.7 HIGH GitLab 跨站脚本漏洞
CVE-2021-22260 7.7 HIGH GitLab 跨站脚本漏洞
CVE-2021-39903 6.5 MEDIUM GitLab 安全漏洞
CVE-2021-39895 6.0 MEDIUM GitLab 输入验证错误漏洞
CVE-2021-39909 5.3 MEDIUM GitLab EE 数据伪造问题漏洞
CVE-2021-39912 5.3 MEDIUM GitLab 资源管理错误漏洞
CVE-2021-39907 5.3 MEDIUM GitLab 输入验证错误漏洞
CVE-2021-39913 4.4 MEDIUM GitLab 日志信息泄露漏洞
CVE-2021-39902 4.3 MEDIUM GitLab 授权问题漏洞
CVE-2021-39904 4.3 MEDIUM GitLab CE/EE 访问控制错误漏洞
CVE-2021-39905 4.3 MEDIUM GitLab 信息泄露漏洞
CVE-2021-39898 3.7 LOW GitLab 信息泄露漏洞
CVE-2021-39901 2.7 LOW GitLab 信息泄露漏洞
CVE-2021-39897 2.6 LOW GitLab 访问控制错误漏洞
CVE-2021-39911 1.7 LOW GitLab Enterprise Edition和GitLab Community Edition 安全漏洞

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab

V. Comments for CVE-2021-39914

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