CVE-2023-3994

2023-08-0200:00:00

ubuntu.com

gitlab ce

gitlab ee

regular expression denial of service

crafted payloads

projectreferencefilter

preview markdown

unix

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

38.4%

JSON

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.