Main Vulnerability Database Vulnerabilities #VU89276

Incorrect Regular Expression in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2023-6688

Published: May 9, 2024

Vulnerability identifier: #VU89276

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-2023-6688

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 on Google Chat Integration. 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-2023-6688

Install updates from vendor's website.

Gitlab Community Edition - update to 16.11.2
GitLab Enterprise Edition - update to 16.11.2

External References

https://about.gitlab.com/releases/2024/05/08/patch-release-gitlab-16-11-2-released/

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