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CVE-2023-6159— 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 12.7版本至16.6.6之前版本、16.7版本至16.7.4之前版本、16.8版本至16.8.1之前版本存在安全漏洞。攻击者利用该漏洞触发正则表达式拒绝服务攻击。

CVSS 6.5 · Medium EPSS 0.99% · P61

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab 12.7< 16.6.6 affected
16.7< 16.7.4 affected
16.8< 16.8.1 affected
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I. Basic Information for CVE-2023-6159

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 from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.
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 12.7版本至16.6.6之前版本、16.7版本至16.7.4之前版本、16.8版本至16.8.1之前版本存在安全漏洞。攻击者利用该漏洞触发正则表达式拒绝服务攻击。
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 12.7 ~ 16.6.6 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2023-6159

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III. Intelligence Information for CVE-2023-6159

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Other References for CVE-2023-6159 (3)

Same Patch Batch · GitLab · 2024-01-26 · 5 CVEs total

CVE-2024-0402 9.9 CRITICAL Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab
CVE-2023-5933 6.4 MEDIUM Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in GitLab
CVE-2023-5612 5.3 MEDIUM Missing Authorization in GitLab
CVE-2024-0456 4.3 MEDIUM Direct Request ('Forced Browsing') in GitLab

IV. Related Vulnerabilities

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

V. Comments for CVE-2023-6159

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