Incorrect Regular Expression in GitLab Enterprise Edition and Gitlab Community Edition - CVE-2023-3424
Published: June 30, 2023
Vulnerability identifier: #VU77830
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-3424
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 within the EpicReferenceFilter in any Markdown fields. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
Affected software
GitLab Enterprise Edition
Gitlab Community Edition
Gitlab Community Edition
How to mitigate CVE-2023-3424
Install updates from vendor's website.
GitLab Enterprise Edition - addressed in versions 15.11.10, 16.0.6, 16.1.1
Gitlab Community Edition - addressed in versions 15.11.10, 16.0.6, 16.1.1
Gitlab Community Edition - addressed in versions 15.11.10, 16.0.6, 16.1.1