CVE-2023-3900 Improper Input Validation in GitLab

2023-08-0200:07:05

CWE-20

GitLab

github.com

gitlab

input validation

denial of service

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

AI Score

6.4

Confidence

Low

EPSS

0.001

Percentile

38.4%

SSVC

Exploitation

poc

Automatable

Technical Impact

partial

JSON

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.1 before 16.1.3, all versions starting from 16.2 before 16.2.2. An invalid ‘start_sha’ value on merge requests page may lead to Denial of Service as Changes tab would not load.