Main Vulnerability Database Vulnerabilities #VU57942

Input validation error in Gitlab Community Edition and GitLab Enterprise Edition - CVE-2021-39914

Published: November 4, 2021

Vulnerability identifier: #VU57942

CSH Severity: Low

CVSS v4: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-39914

CWE-ID: CWE-20

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 regular expression denial of service issue when cleaning namespace path. A remote authenticated attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Affected software

Gitlab Community Edition
GitLab Enterprise Edition

How to mitigate CVE-2021-39914

Install updates from vendor's website.

Gitlab Community Edition - addressed in versions 14.3.2, 14.3.3, 14.4.0
GitLab Enterprise Edition - addressed in versions 14.2.6, 14.3.4, 14.4.1

External References

https://about.gitlab.com/releases/2021/10/28/security-release-gitlab-14-4-1-released/

Related Security Bulletins