CVE-2023-3424: Inefficient Regular Expression Complexity in GitLab
First published: Thu Jul 13 2023(Updated: )
An issue has been discovered in GitLab CE/EE affecting all versions starting from 10.3 before 15.11.10, all versions starting from 16.0 before 16.0.6, all versions starting from 16.1 before 16.1.1. A Regular Expression Denial of Service was possible via sending crafted payloads to the preview_markdown endpoint.
Credit: cve@gitlab.com cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab GitLab | >=10.3.0<15.11.10 | |
| GitLab GitLab | >=10.3.0<15.11.10 | |
| GitLab GitLab | >=16.0.0<16.0.6 | |
| GitLab GitLab | >=16.0.0<16.0.6 | |
| GitLab GitLab | >=16.1.0<16.1.1 | |
| GitLab GitLab | >=16.1.0<16.1.1 |
Remedy
Upgrade to versions 16.1.1, 16.0.6, 15.11.10 or above.
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Reference Links
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-3424.
What is the severity of CVE-2023-3424?
The severity of CVE-2023-3424 is high with a CVSS score of 7.5.
What software is affected by CVE-2023-3424?
GitLab CE/EE versions starting from 10.3 before 15.11.10, versions starting from 16.0 before 16.0.6, and versions starting from 16.1 before 16.1.1 are affected.
How can an attacker exploit CVE-2023-3424?
An attacker can exploit CVE-2023-3424 by sending crafted payloads to the preview_markdo endpoint, leading to a Regular Expression Denial of Service.
Are there any references for CVE-2023-3424?
Yes, you can find more information about CVE-2023-3424 at the following links: [HackerOne Report](https://hackerone.com/reports/1960970) and [GitLab Issue](https://gitlab.com/gitlab-org/gitlab/-/issues/409802).
- collector/nvd-latest
- agent/weakness
- agent/references
- agent/author
- agent/type
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/description
- agent/remedy
- agent/severity
- 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/10.3.0
- version/gitlab gitlab/16.0.0
- version/gitlab gitlab/16.1.0