USN-4251-1: Tomcat vulnerabilities

27 January 2020

tomcat8 vulnerabilities

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

  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in Tomcat.

Software Description

  • tomcat8 - Servlet and JSP engine

Details

It was discovered that Tomcat incorrectly handled the RMI registry when configured with the JMX Remote Lifecycle Listener. A local attacker could possibly use this issue to obtain credentials and gain complete control over the Tomcat instance. (CVE-2019-12418)

It was discovered that Tomcat incorrectly handled FORM authentication. A remote attacker could possibly use this issue to perform a session fixation attack. (CVE-2019-17563)

Update instructions

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

Ubuntu 16.04 LTS
libtomcat8-java - 8.0.32-1ubuntu1.11
tomcat8 - 8.0.32-1ubuntu1.11

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