CVE-2021-39917
CVSS V2 Medium 4
CVSS V3 Medium 6.5
Description
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.
Overview
- CVE ID
- CVE-2021-39917
- Assigner
- cve@gitlab.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-13T16:15:08
- Last Modified Date
- 2021-12-16T02:57:47
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 1 | OR | 12.9.0 | 14.3.6 |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 1 | OR | 12.9.0 | 14.3.6 |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 1 | OR | 14.4.0 | 14.4.4 |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 1 | OR | 14.4.0 | 14.4.4 |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* | 1 | OR | 14.5.0 | 14.5.2 |
| cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* | 1 | OR | 14.5.0 | 14.5.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://hackerone.com/reports/1277918 | Permissions Required Third Party Advisory |
| https://gitlab.com/gitlab-org/gitlab/-/issues/338486 | Broken Link |
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39917.json | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-39917 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39917 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:41:04 | Added to TrackCVE | |||
| 2022-12-06 03:38:51 | 2021-12-13T16:15Z | 2021-12-13T16:15:08 | CVE Published Date | updated |
| 2022-12-06 03:38:51 | 2021-12-16T02:57:47 | CVE Modified Date | updated | |
| 2022-12-06 03:38:51 | Analyzed | Vulnerability Status | updated |