PT-2023-18358 · Gitlab · Gitlab Ce/Ee+1

Ryhmnlfjon · Published 2023-06-07 · Updated 2025-01-07 · CVE-2023-2198

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions GitLab CE/EE versions 8.7 through 15.10.7 GitLab CE/EE versions 15.11 through 15.11.6 GitLab CE/EE versions 16.0 through 16.0.1

Description A Regular Expression Denial of Service issue was discovered, allowing attackers to send crafted payloads to the "preview markdown" endpoint. This could potentially lead to a denial of service.

Recommendations For versions 8.7 through 15.10.7, update to version 15.10.8 or later. For versions 15.11 through 15.11.6, update to version 15.11.7 or later. For versions 16.0 through 16.0.1, update to version 16.0.2 or later. As a temporary workaround, consider restricting access to the "preview markdown" endpoint until a patch is available.

Exploit

Fix

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

BIT-GITLAB-2023-2198

CVE-2023-2198

Affected Products

Gitlab

Gitlab Ce/Ee

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2198.json · Exploit
• 🔥 https://gitlab.com/gitlab-org/gitlab/-/issues/408273 · Exploit
• https://cve.org/CVERecord?id=CVE-2023-2198 · Security Note
• https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-2198.json · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-2198 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-2198 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-2198 · Security Note
• https://osv.dev/vulnerability/BIT-gitlab-2023-2198 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-2198 · Vendor Advisory
• https://t.me/cvenotify/106617 · Telegram Post
• https://about.gitlab.com/releases/2023/06/05/security-release-gitlab-16-0-2-released · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2198 · Note
• https://hackerone.com/reports/1947187 · Note