CVE-2021-39914

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A regular expression denial of service issue in GitLab versions 8.13 to 14.2.5, 14.3.0 to 14.3.3 and 14.4.0 could cause excessive usage of resources when a specially crafted username was used when provisioning a new user

Un problema de denegación de servicio con expresiones regulares en GitLab versiones 8.13 a 14.2.5, 14.3.0 a 14.3.3 y 14.4.0, podía causar un uso excesivo de recursos cuando se usaba un nombre de usuario especialmente diseñado al aprovisionar un nuevo usuario

*Credits: This vulnerability has been discovered internally by the GitLab team

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-23 CVE Reserved
2021-11-04 CVE Published
2023-05-28 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (2)

URL	Tag	Source
https://gitlab.com/gitlab-org/gitlab/-/issues/289948	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39914.json	2022-05-03

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"				>= 8.13.0 < 14.2.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 8.13.0 < 14.2.6"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 8.13.0 < 14.2.6 Search vendor "Gitlab" for product "Gitlab" and version " >= 8.13.0 < 14.2.6"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.3.0 < 14.3.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.3.0 < 14.3.4"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				>= 14.3.0 < 14.3.4 Search vendor "Gitlab" for product "Gitlab" and version " >= 14.3.0 < 14.3.4"		enterprise		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				14.4.0 Search vendor "Gitlab" for product "Gitlab" and version "14.4.0"		community		Affected
Gitlab Search vendor "Gitlab"		Gitlab Search vendor "Gitlab" for product "Gitlab"				14.4.0 Search vendor "Gitlab" for product "Gitlab" and version "14.4.0"		enterprise		Affected