Denial of service in DataCommunicator class in Vaadin 8

Moderate

fluorumlabs published GHSA-j23j-q57m-63v3

Oct 13, 2021

Package

com.vaadin:vaadin-server (Maven)

Affected versions

>=8.0.0, <=8.14.0

Patched versions

8.14.1

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.

https://vaadin.com/security/cve-2021-33609

Severity

Moderate

4.3

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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