title: Denial of service in DataCommunicator class in Vaadin 8
description: Missing check in DataCommunicator class in com.vaadin:vaadin-server versions 8.0.0 through 8.14.0 (Vaadin 8.0.0 through 8.14.0) allows authenticated network attacker to cause heap exhaustion by requesting too many rows of data.
problem types: CWE-400 Uncontrolled Resource Consumption
affected:
{
product: Vaadin
vendor: Vaadin
versions:
lessThan: unspecified, status: affected, version: 8.0.0, versionType: custom
lessThanOrEqual: 8.14.0, status: affected, version: unspecified, versionType: custom
}
{
product: vaadin-server
vendor: Vaadin
versions:
lessThan: unspecified, status: affected, version: 8.0.0, versionType: custom
lessThanOrEqual: 8.14.0, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 4.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
version: 3.1
]