USN-3971-1: Monit vulnerabilities

8 May 2019

Monit vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 19.04
  • Ubuntu 18.10


Several security issues were fixed in Monit

Software Description

  • monit - utility for monitoring and managing daemons or similar programs


Zack Flack discovered that Monit incorrectly handled certain input. A remote authenticated user could exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2019-11454)

Zack Flack discovered a buffer overread when Monit decoded certain crafted URLs. An attacker could exploit this to leak potentially sensitive information. (CVE-2019-11455)

Update instructions

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

Ubuntu 19.04
monit - 1:5.25.2-3ubuntu0.1
Ubuntu 18.10
monit - 1:5.25.2-1ubuntu0.1

To update your system, please follow these instructions:

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