What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2023-3994.

What is the severity level of CVE-2023-3994?

The severity level of CVE-2023-3994 is high, with a score of 7.5.

Which versions of GitLab are affected by CVE-2023-3994?

Versions starting from 9.3 before 16.0.8, and versions starting from 16.1 before 16.1.3, and versions starting from 16.2 before 16.2.2 of GitLab are affected by CVE-2023-3994.

What is the description of CVE-2023-3994?

CVE-2023-3994 is a vulnerability in GitLab CE/EE that allows for a Regular Expression Denial of Service through crafted payloads.

How can I fix the vulnerability in GitLab?

To fix the vulnerability, it is recommended to upgrade GitLab to version 16.0.8, 16.1.3, or 16.2.2, depending on the affected version.

Vulnerability/
CVE-2023-3994

high

7.5

CWE

1333 400

2/8/2023

3/10/2024

CVE-2023-3994: Inefficient Regular Expression Complexity in GitLab

First published: Wed Aug 02 2023(Updated: )

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.

Credit: cve@gitlab.com cve@gitlab.com

Affected Software	Affected Version	How to fix
GitLab GitLab	>=9.3<16.0.8
GitLab GitLab	>=9.3<16.0.8
GitLab GitLab	>=16.1<16.1.3
GitLab GitLab	>=16.1<16.1.3
GitLab GitLab	>=16.2<16.2.2
GitLab GitLab	>=16.2<16.2.2

Remedy

Upgrade to versions 16.2.2, 16.1.3, 16.0.8 or above.

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2023-3994.
What is the severity level of CVE-2023-3994?
The severity level of CVE-2023-3994 is high, with a score of 7.5.
Which versions of GitLab are affected by CVE-2023-3994?
Versions starting from 9.3 before 16.0.8, and versions starting from 16.1 before 16.1.3, and versions starting from 16.2 before 16.2.2 of GitLab are affected by CVE-2023-3994.
What is the description of CVE-2023-3994?
CVE-2023-3994 is a vulnerability in GitLab CE/EE that allows for a Regular Expression Denial of Service through crafted payloads.
How can I fix the vulnerability in GitLab?
To fix the vulnerability, it is recommended to upgrade GitLab to version 16.0.8, 16.1.3, or 16.2.2, depending on the affected version.

agent/references
agent/author
agent/weakness
agent/type
agent/severity
agent/description
collector/nvd-latest
agent/software-canonical-lookup-request
collector/nvd-index
agent/softwarecombine
agent/remedy
agent/first-publish-date
agent/event
agent/tags
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/title
collector/nvd-api
source/NVD
agent/software-canonical-lookup
vendor/gitlab
canonical/gitlab gitlab
version/gitlab gitlab/16.2
version/gitlab gitlab/16.1
version/gitlab gitlab/9.3

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