Advisory Published

USN-4023-1: Mosquitto vulnerabilities

First published: Thu Jun 20 2019(Updated: )

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.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libmosquitto1<1.4.15-2ubuntu0.18.10.3
1.4.15-2ubuntu0.18.10.3
=18.10
All of
ubuntu/libmosquittopp1<1.4.15-2ubuntu0.18.10.3
1.4.15-2ubuntu0.18.10.3
=18.10
All of
ubuntu/mosquitto<1.4.15-2ubuntu0.18.10.3
1.4.15-2ubuntu0.18.10.3
=18.10
All of
ubuntu/mosquitto-clients<1.4.15-2ubuntu0.18.10.3
1.4.15-2ubuntu0.18.10.3
=18.10
All of
ubuntu/libmosquitto1<1.4.15-2ubuntu0.18.04.3
1.4.15-2ubuntu0.18.04.3
=18.04
All of
ubuntu/libmosquittopp1<1.4.15-2ubuntu0.18.04.3
1.4.15-2ubuntu0.18.04.3
=18.04
All of
ubuntu/mosquitto<1.4.15-2ubuntu0.18.04.3
1.4.15-2ubuntu0.18.04.3
=18.04
All of
ubuntu/mosquitto-clients<1.4.15-2ubuntu0.18.04.3
1.4.15-2ubuntu0.18.04.3
=18.04
All of
ubuntu/libmosquitto1<1.4.8-1ubuntu0.16.04.7
1.4.8-1ubuntu0.16.04.7
=16.04
All of
ubuntu/libmosquittopp1<1.4.8-1ubuntu0.16.04.7
1.4.8-1ubuntu0.16.04.7
=16.04
All of
ubuntu/mosquitto<1.4.8-1ubuntu0.16.04.7
1.4.8-1ubuntu0.16.04.7
=16.04
All of
ubuntu/mosquitto-clients<1.4.8-1ubuntu0.16.04.7
1.4.8-1ubuntu0.16.04.7
=16.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for the Mosquitto vulnerabilities?

    The vulnerability ID for the Mosquitto vulnerabilities is USN-4023-1.

  • What is the severity of USN-4023-1?

    The severity of USN-4023-1 is not specified in the description.

  • Which software is affected by USN-4023-1?

    The software affected by USN-4023-1 includes libmosquitto1, libmosquittopp1, mosquitto, and mosquitto-clients on Ubuntu 18.10, 18.04, and 16.04.

  • How can I fix USN-4023-1?

    To fix USN-4023-1, update to version 1.4.15-2ubuntu0.18.10.3 or higher for libmosquitto1, libmosquittopp1, mosquitto, and mosquitto-clients on Ubuntu 18.10. Update to version 1.4.15-2ubuntu0.18.04.3 or higher for libmosquitto1, libmosquittopp1, mosquitto, and mosquitto-clients on Ubuntu 18.04. Update to version 1.4.8-1ubuntu0.16.04.7 or higher for libmosquitto1, libmosquittopp1, mosquitto, and mosquitto-clients on Ubuntu 16.04.

  • Where can I find more information about USN-4023-1?

    You can find more information about USN-4023-1 at the following references: [CVE-2017-7653](https://ubuntu.com/security/CVE-2017-7653), [CVE-2017-7654](https://ubuntu.com/security/CVE-2017-7654), [https://launchpad.net/ubuntu/+source/mosquitto/1.4.15-2ubuntu0.18.10.3](https://launchpad.net/ubuntu/+source/mosquitto/1.4.15-2ubuntu0.18.10.3)

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