An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.9 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. A regular expression related to quick actions features was susceptible to catastrophic backtracking that could cause a DOS attack.
Weakness
The product compares two entities in a security-relevant context, but the comparison is incorrect.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gitlab | Gitlab | 12.9.0 (including) | 14.3.6 (excluding) |
| Gitlab | Gitlab | 14.4.0 (including) | 14.4.4 (excluding) |
| Gitlab | Gitlab | 14.5.0 (including) | 14.5.2 (excluding) |
| Gitlab | Ubuntu | esm-apps/xenial | * |
| Gitlab | Ubuntu | trusty | * |
| Gitlab | Ubuntu | xenial | * |
Extended Description
This Pillar covers several possibilities:
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/10.html
- https://cwe.mitre.org/data/definitions/120.html
- https://cwe.mitre.org/data/definitions/14.html
- https://cwe.mitre.org/data/definitions/15.html
- https://cwe.mitre.org/data/definitions/182.html
- https://cwe.mitre.org/data/definitions/24.html
- https://cwe.mitre.org/data/definitions/267.html
- https://cwe.mitre.org/data/definitions/3.html
- https://cwe.mitre.org/data/definitions/41.html
- https://cwe.mitre.org/data/definitions/43.html
- https://cwe.mitre.org/data/definitions/44.html
- https://cwe.mitre.org/data/definitions/45.html
- https://cwe.mitre.org/data/definitions/46.html
- https://cwe.mitre.org/data/definitions/47.html
- https://cwe.mitre.org/data/definitions/52.html
- https://cwe.mitre.org/data/definitions/53.html
- https://cwe.mitre.org/data/definitions/6.html
- https://cwe.mitre.org/data/definitions/64.html
- https://cwe.mitre.org/data/definitions/67.html
- https://cwe.mitre.org/data/definitions/7.html
- https://cwe.mitre.org/data/definitions/71.html
- https://cwe.mitre.org/data/definitions/73.html
- https://cwe.mitre.org/data/definitions/78.html
- https://cwe.mitre.org/data/definitions/79.html
- https://cwe.mitre.org/data/definitions/8.html
- https://cwe.mitre.org/data/definitions/80.html
- https://cwe.mitre.org/data/definitions/88.html
- https://cwe.mitre.org/data/definitions/9.html
- https://cwe.mitre.org/data/definitions/92.html
References
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/338486
- https://hackerone.com/reports/1277918
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/338486
- https://hackerone.com/reports/1277918