PT-2021-22763 · Gitlab · Gitlab Ce/Ee+1

Hashkitten · Published 2021-12-13 · Updated 2024-03-06 · CVE-2021-39917

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 12.9 through 14.3.5 GitLab CE/EE versions 14.4 through 14.4.3 GitLab CE/EE versions 14.5 through 14.5.1

Description An issue has been discovered in GitLab CE/EE where a regular expression related to quick actions features was susceptible to catastrophic backtracking, which could cause a Denial of Service (DOS) attack.

Recommendations For versions 12.9 through 14.3.5, update to version 14.3.6 or later. For versions 14.4 through 14.4.3, update to version 14.4.4 or later. For versions 14.5 through 14.5.1, update to version 14.5.2 or later.

Fix

DoS

Weakness Enumeration

CWE-697

Related Identifiers

BIT-GITLAB-2021-39917

CVE-2021-39917

Affected Products

Gitlab

Gitlab Ce/Ee

References · 10

• https://cve.org/CVERecord?id=CVE-2021-39917 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-39917 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39917 · Security Note
• https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39917 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-39917 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-gitlab-2021-39917 · Vendor Advisory
• https://gitlab.com/gitlab-org/gitlab/-/issues/338486 · Note
• https://t.me/cibsecurity/33851 · Telegram Post
• https://hackerone.com/reports/1277918 · Note