Main Vulnerability Database Vulnerabilities #VU85812

Incorrect Regular Expression in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2023-6159

Published: January 26, 2024

Vulnerability identifier: #VU85812

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-6159

CWE-ID: CWE-185

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions in Cargo.toml blob viewer. A remote user can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Affected software

Gitlab Community Edition
GitLab Enterprise Edition

How to mitigate CVE-2023-6159

Install updates from vendor's website.

Gitlab Community Edition - addressed in versions 16.5.8, 16.6.6, 16.7.4, 16.8.1
GitLab Enterprise Edition - addressed in versions 16.5.8, 16.6.6, 16.7.4, 16.8.1

External References

https://about.gitlab.com/releases/2024/01/25/critical-security-release-gitlab-16-8-1-released/

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