CVE-2021-34431 Information

Description

In Eclipse Mosquitto version 1.6 to 2.0.10 if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur which could be used to provide a DoS attack against the broker.

CVSS Vector

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

Reference

https://bugs.eclipse.org/bugs/show_bug.cgi?id=573191

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5