CVE-2023-3909

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.

Reserved 2023-07-25 | Published 2023-11-06 | Updated 2024-10-03 | Assigner GitLab

Problem types

CWE-1333: Inefficient Regular Expression Complexity

Product status

Default status
unaffected

12.3 before 16.3.6
affected

16.4 before 16.4.2
affected

16.5 before 16.5.1
affected

Credits

Thanks [akadrian](https://hackerone.com/akadrian) for reporting this vulnerability through our HackerOne bug bounty program finder

References

gitlab.com/gitlab-org/gitlab/-/issues/418763 (GitLab Issue #418763) issue-tracking permissions-required

hackerone.com/reports/2050269 (HackerOne Bug Bounty Report #2050269) technical-description exploit permissions-required

cve.org (CVE-2023-3909)

nvd.nist.gov (CVE-2023-3909)

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