CVE-2021-39940
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.2 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2. GitLab Maven Package registry is vulnerable to a regular expression denial of service when a specifically crafted string is sent.
Se ha detectado un problema en GitLab CE/EE afectando a todas las versiones a partir de 13.2 anteriores a 14.3.6, a todas las versiones a partir de 14.4 anteriores a 14.4.4, a todas las versiones a partir de 14.5 anteriores a 14.5.2. El registro de paquetes de GitLab Maven es vulnerable a una denegación de servicio de expresión regular cuando es enviada una cadena específicamente manipulada
*Credits:
Thanks @anyday for reporting this vulnerability through our HackerOne bug bounty program.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-08-23 CVE Reserved
- 2021-12-13 CVE Published
- 2023-08-04 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-1333: Inefficient Regular Expression Complexity
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39940.json | Third Party Advisory | |
| https://gitlab.com/gitlab-org/gitlab/-/issues/263116 | Broken Link |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 13.2.0 < 14.3.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 13.2.0 < 14.3.6" | community |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 13.2.0 < 14.3.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 13.2.0 < 14.3.6" | enterprise |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.4.0 < 14.4.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.4.0 < 14.4.4" | community |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.4.0 < 14.4.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.4.0 < 14.4.4" | enterprise |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.5.0 < 14.5.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.5.0 < 14.5.2" | community |
Affected
| ||||||
| Gitlab Search vendor "Gitlab" | Gitlab Search vendor "Gitlab" for product "Gitlab" | >= 14.5.0 < 14.5.2 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.5.0 < 14.5.2" | enterprise |
Affected
| ||||||