USN-4023-1: Mosquitto vulnerabilities

mosquitto vulnerabilities

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

Ubuntu 18.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary

Several security issues were fixed in Mosquitto.

Software Description

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.

Update instructions

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

Ubuntu 18.10: 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
Ubuntu 18.04 LTS: 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
Ubuntu 16.04 LTS: 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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-4023-1: Mosquitto vulnerabilities

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