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CVE-2023-6502— 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 Enterprise Edition（EE）和GitLab Community Edition（CE）都是美国GitLab公司的产品。GitLab Enterprise Edition是一套内容管理系统。GitLab Community Edition是一种社区版 GitLab 。 GitLab CE/EE 16.10.6 之前、16.11.3 之前、17.0.1 之前版本存在安全漏洞，该漏洞源于允许攻击者使用精心设计的 wiki 页面造成拒绝服务。

CVSS 4.3 · Medium EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood
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I. Basic Information for CVE-2023-6502

Vulnerability Information
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Vulnerability Title
Inefficient Regular Expression Complexity in GitLab
Source: CVE Program / CVE List V5
Vulnerability Description
A Denial of Service (DoS) condition has been discovered in GitLab CE/EE affecting all versions before 16.10.6, version 16.11 before 16.11.3, and 17.0 before 17.0.1. It is possible for an attacker to cause a denial of service using a crafted wiki page.
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:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab CE/EE 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）和GitLab Community Edition（CE）都是美国GitLab公司的产品。GitLab Enterprise Edition是一套内容管理系统。GitLab Community Edition是一种社区版 GitLab 。 GitLab CE/EE 16.10.6 之前、16.11.3 之前、17.0.1 之前版本存在安全漏洞，该漏洞源于允许攻击者使用精心设计的 wiki 页面造成拒绝服务。
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 0 ~ 16.10.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2023-6502

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III. Intelligence Information for CVE-2023-6502

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Other References for CVE-2023-6502 (2)

Same Patch Batch · GitLab · 2024-05-23 · 6 CVEs total

CVE-2024-4835 8.0 HIGH Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2024-2874 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in GitLab
CVE-2023-7045 5.4 MEDIUM Cross-Site Request Forgery (CSRF) in GitLab
CVE-2024-5258 4.4 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab
CVE-2024-1947 4.3 MEDIUM Improper Handling of Highly Compressed Data (Data Amplification) in GitLab

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-6502

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