title: Denial of Service when processing malformed Role names
description: Incorrect validation of user input in the role name parser may lead to use of uninitialized memory allowing an unauthenticated attacker to use a specially crafted request to cause a denial of service. This issue affects MongoDB Server v4.4 versions prior to 4.4.0-rc12; MongoDB Server v4.2 versions prior to 4.2.9.
problem types: CWE-475 Undefined Behavior for Input to API
affected:
{
defaultStatus: unaffected
product: MongoDB Server
vendor: MongoDB Inc.
versions:
lessThan: 4.2.9, status: affected, version: 4.2, versionType: custom
lessThan: 4.4.0-rc12, status: affected, version: 4.4, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL