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vulnerability

Ubuntu: USN-6492-1 (CVE-2021-34431): Mosquitto vulnerabilities

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
Jul 22, 2021
Added
Nov 22, 2023
Modified
Apr 16, 2026

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.

Solutions

ubuntu-pro-upgrade-mosquittoubuntu-upgrade-mosquitto
Title
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