USN-4137-1: Mosquitto vulnerability

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  • Start date

Ubuntu security notices

Mosquitto vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04

Mosquitto could be made to crash or run programs if it received specially crafted network traffic.

Software Description

  • mosquitto - MQTT version 3.1⁄3.1.1 compatible message broker

It was discovered that Mosquitto incorrectly handled certain specially crafted input and network packets. A remote attacker could use this to cause a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.04
libmosquitto1 - 1.5.7-1ubuntu0.1
libmosquittopp1 - 1.5.7-1ubuntu0.1
mosquitto - 1.5.7-1ubuntu0.1
mosquitto-clients - 1.5.7-1ubuntu0.1

To update your system, please follow these instructions:

In general, a standard system update will make all the necessary changes.


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