CVE-2023-3994 — Regex Denial of Service in Gitlab

CWE-1333 — Regex Denial of ServiceCWE-400 — Uncontrolled Resource Consumption6 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 42.35%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
GitlabDebian GitlabGitlab CE
Timeline
PublishedAug 2

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. A Regular Expression Denial of Service was possible via sending crafted payloads which use ProjectReferenceFilter to the preview_markdown endpoint.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶NVDgitlab/gitlab9.3 — 16.0.8+2
▶debiandebian/gitlab< gitlab 16.0.8+ds1-1 (sid)
▶gitlabgitlab/gitlab

🔴Vulnerability Details

2
OSV
CVE-2023-3994: An issue has been discovered in GitLab CE/EE affecting all versions starting from 9↗2023-08-02
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GHSA
GHSA-5jfm-fvc2-73xf: An issue has been discovered in GitLab CE/EE affecting all versions starting from 9↗2023-08-02
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📋Vendor Advisories

3
Red Hat
gitlab: ReDoS when sending crafted payloads which use ProjectReferenceFilter↗2023-08-02
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GitLab
CVE-2023-3994: An issue has been discovered in GitLab CE/EE affecting all versions starting from 9.3 before 16.0.8, all versions starting from 16.1 before 16.1.3, al↗2023-08-02
▶
Debian
CVE-2023-3994: gitlab - An issue has been discovered in GitLab CE/EE affecting all versions starting fro...↗2023
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