USN-6685-1: mqtt-client vulnerability

7 March 2024

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

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Releases

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.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading