1. Ubuntu Security Notices
  2. USN-4823-1

USN-4823-1: Mosquitto vulnerability

Publication date

15 March 2021

Overview

Mosquitto could be made to crash if it received specially crafted input.

Releases

Packages

  • mosquitto - MQTT version 3.1/3.1.1 compatible message broker

Details

It was discovered that Mosquitto incorrectly handled certain inputs. A
remote attacker could possibly use this issue to cause a denial of service.

It was discovered that Mosquitto incorrectly handled certain inputs. A
remote attacker could possibly use this issue 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
18.04 bionic libmosquitto1 –  1.4.15-2ubuntu0.18.04.3+esm1  
mosquitto –  1.4.15-2ubuntu0.18.04.3+esm1  
libmosquittopp1 –  1.4.15-2ubuntu0.18.04.3+esm1  
mosquitto-clients –  1.4.15-2ubuntu0.18.04.3+esm1  
16.04 xenial libmosquitto1 –  1.4.8-1ubuntu0.16.04.7+esm1  
mosquitto –  1.4.8-1ubuntu0.16.04.7+esm1  
libmosquittopp1 –  1.4.8-1ubuntu0.16.04.7+esm1  
mosquitto-clients –  1.4.8-1ubuntu0.16.04.7+esm1  

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References

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