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AUSCERT External Security Bulletin Redistribution
ESB-2019.2226
USN-4023-1: Mosquitto vulnerabilities
21 June 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Mosquitto
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-7654 CVE-2017-7653
Reference: ESB-2018.3279
ESB-2018.2937
Original Bulletin:
https://usn.ubuntu.com/4023-1/
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USN-4023-1: Mosquitto vulnerabilities
20 June 2019
mosquitto vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Several security issues were fixed in Mosquitto.
Software Description
o 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 LTS
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 LTS
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
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o CVE-2017-7653
o CVE-2017-7654
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