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CVE-2023-6682— Inefficient Regular Expression Complexity in GitLab

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.

GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab CE/EE存在安全漏洞，该漏洞源于Discord Integrations 聊天消息的处理逻辑问题可能会导致服务器上的正则表达式 DoS 攻击。受影响版本如下:16.9 至 16.9.7之前版本； 16.10 至 16.10.5之前版​ 本；16.11 至 16.11.2之前版本

CVSS 6.5 · Medium EPSS 0.75% · P54
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I. Basic Information for CVE-2023-6682

Vulnerability Information
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Vulnerability Title
Inefficient Regular Expression Complexity in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.9 prior to 16.9.7, starting from 16.10 prior to 16.10.5, and starting from 16.11 prior to 16.11.2. A problem with the processing logic for Discord Integrations Chat Messages can lead to a regular expression DoS attack on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab是美国GitLab公司的一个开源的端到端软件开发平台，具有内置的版本控制、问题跟踪、代码审查、CI/CD（持续集成和持续交付）等功能。 GitLab CE/EE存在安全漏洞，该漏洞源于Discord Integrations 聊天消息的处理逻辑问题可能会导致服务器上的正则表达式 DoS 攻击。受影响版本如下:16.9 至 16.9.7之前版本； 16.10 至 16.10.5之前版​ 本；16.11 至 16.11.2之前版本
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 16.9 ~ 16.9.7 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2023-6682

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III. Intelligence Information for CVE-2023-6682

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Other References for CVE-2023-6682 (2)

Same Patch Batch · GitLab · 2024-05-09 · 6 CVEs total

CVE-2024-2651 6.5 MEDIUM Inefficient Regular Expression Complexity in GitLab
CVE-2024-2454 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2023-6688 6.5 MEDIUM Inefficient Regular Expression Complexity in GitLab
CVE-2024-4597 5.7 MEDIUM Cross-Site Request Forgery (CSRF) in GitLab
CVE-2024-4539 4.3 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-1333

V. Comments for CVE-2023-6682

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