[USN-4137-1] Mosquitto vulnerability

Mike Salvatore mike.salvatore at canonical.com
Mon Sep 23 19:01:50 UTC 2019

Ubuntu Security Notice USN-4137-1
September 23, 2019

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

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


Package Information:

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