CVE-2023-6159: Inefficient Regular Expression Complexity in GitLab
First published: Fri Jan 26 2024(Updated: )
An issue has been discovered in GitLab CE/EE affecting all versions from 12.7 prior to 16.6.6, 16.7 prior to 16.7.4, and 16.8 prior to 16.8.1 It was possible for an attacker to trigger a Regular Expression Denial of Service via a `Cargo.toml` containing maliciously crafted input.
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GitLab | >=12.7.0<16.6.6 | |
| GitLab | >=12.7.0<16.6.6 | |
| GitLab | >=16.7.0<16.7.4 | |
| GitLab | >=16.7.0<16.7.4 | |
| GitLab | =16.8.0 | |
| GitLab | =16.8.0 |
Remedy
Upgrade to versions 16.8.1, 16.7.4, 16.6.6 or above.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-6159?
The severity of CVE-2023-6159 is classified as high due to its potential for Denial of Service attacks.
How do I fix CVE-2023-6159?
To fix CVE-2023-6159, update your GitLab installation to version 16.8.1 or later.
Which versions of GitLab are affected by CVE-2023-6159?
CVE-2023-6159 affects GitLab CE/EE versions from 12.7 up to, but not including, 16.6.6, 16.7 up to, but not including, 16.7.4, and 16.8.0.
What type of attack is possible with CVE-2023-6159?
CVE-2023-6159 allows an attacker to execute a Regular Expression Denial of Service via a specially crafted Cargo.toml file.
Is there a workaround for CVE-2023-6159?
There are no recommended workarounds for CVE-2023-6159; updating to a fixed version is necessary.
- agent/weakness
- agent/title
- agent/references
- agent/remedy
- agent/type
- agent/first-publish-date
- agent/description
- agent/severity
- agent/author
- agent/event
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/tags
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/gitlab
- canonical/gitlab
- version/gitlab/12.7.0
- version/gitlab/16.7.0
- version/gitlab/16.8.0