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Ubuntu Security Notice USN-6685-1
March 07, 2024
mqtt-client vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
Summary:
mqtt-client could be made to crash if it received specially crafted
input.
Software Description:
- mqtt-client: Java MQTT Client API
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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
  libmqtt-client-java             1.14-1+deb10u1build0.20.04.1
Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  libmqtt-client-java             1.14-1ubuntu0.18.04.1~esm1
Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  libmqtt-client-java             1.10-1ubuntu0.1~esm1
In general, a standard system update will make all the necessary changes.
References:
  https://ubuntu.com/security/notices/USN-6685-1
  CVE-2019-0222
Package Information:
  https://launchpad.net/ubuntu/+source/mqtt-client/1.14-1+deb10u1build0.20.04.1