title: Improper Input Validation in GitLab
description: An issue has been discovered in GitLab EE with Advanced Search affecting all versions from 13.9 to 16.3.6, 16.4 prior to 16.4.2 and 16.5 prior to 16.5.1 that could allow a denial of service in the Advanced Search function by chaining too many syntax operators.
problem types: CWE-20: Improper Input Validation
affected:
{
vendor: GitLab
product: GitLab
repo: git://git@gitlab.com:gitlab-org/gitlab.git
versions:
version: 13.9, status: affected, lessThan: 16.3.6, versionType: semver
version: 16.4.0, status: affected, lessThan: 16.4.2, versionType: semver
version: 16.5.0, status: affected, lessThan: 16.5.1, versionType: semver
defaultStatus: unaffected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: LOW
baseScore: 3.1
baseSeverity: LOW
]
solutions: Upgrade to version 16.3.6, 16.4.2, 16.5.1 or above.