USN-6685-1: mqtt-client vulnerability

Publication date

7 March 2024

Overview

mqtt-client could be made to crash if it received specially crafted input.


Packages

Details

It was discovered that mqtt-client incorrectly handled memory while parsing
malformed MQTT frames. An attacker could possibly use this issue to cause a
crash, resulting in a denial of service, or possibly execute arbitrary code.

It was discovered that mqtt-client incorrectly handled memory while parsing
malformed MQTT frames. An attacker could possibly use this issue to cause a
crash, resulting in a denial of service, or possibly execute arbitrary code.

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
20.04 focal libmqtt-client-java –  1.14-1+deb10u1build0.20.04.1
18.04 bionic libmqtt-client-java –  1.14-1ubuntu0.18.04.1~esm1  
16.04 xenial libmqtt-client-java –  1.10-1ubuntu0.1~esm1  

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