1. Ubuntu Security Notices
  2. USN-4137-1

USN-4137-1: Mosquitto vulnerability

Publication date

23 September 2019

Overview

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

Releases

Packages

  • mosquitto - MQTT version 3.1/3.1.1 compatible message broker

Details

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.04 disco libmosquittopp1 –  1.5.7-1ubuntu0.1
mosquitto –  1.5.7-1ubuntu0.1
libmosquitto1 –  1.5.7-1ubuntu0.1
mosquitto-clients –  1.5.7-1ubuntu0.1

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References

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