1. Ubuntu Security Notices
  2. USN-4023-1

USN-4023-1: Mosquitto vulnerabilities

Publication date

20 June 2019

Overview

Several security issues were fixed in Mosquitto.

Releases

Packages

  • mosquitto - MQTT version 3.1/3.1.1 compatible message broker

Details

It was discovered that Mosquitto broker 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 broker 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
18.10 cosmic libmosquitto1 –  1.4.15-2ubuntu0.18.10.3
libmosquittopp1 –  1.4.15-2ubuntu0.18.10.3
mosquitto –  1.4.15-2ubuntu0.18.10.3
mosquitto-clients –  1.4.15-2ubuntu0.18.10.3
18.04 bionic libmosquitto1 –  1.4.15-2ubuntu0.18.04.3
libmosquittopp1 –  1.4.15-2ubuntu0.18.04.3
mosquitto –  1.4.15-2ubuntu0.18.04.3
mosquitto-clients –  1.4.15-2ubuntu0.18.04.3
16.04 xenial libmosquitto1 –  1.4.8-1ubuntu0.16.04.7
libmosquittopp1 –  1.4.8-1ubuntu0.16.04.7
mosquitto –  1.4.8-1ubuntu0.16.04.7
mosquitto-clients –  1.4.8-1ubuntu0.16.04.7

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References

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