USN-4023-1: Mosquitto vulnerabilities

Releases

• Ubuntu 18.10
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

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.

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

• 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

• 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

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

References

• CVE-2017-7653
• CVE-2017-7654