A Tomcat security update has been released for Ubuntu Linux 16.04 LTS.

USN-3081-2: Tomcat vulnerability

==========================================================================
Ubuntu Security Notice USN-3081-2
October 27, 2020

tomcat6 vulnerability
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

The system could be made to run programs as an administrator.

Software Description:
- tomcat6: Servlet and JSP engine

Details:

Dawid Golunski discovered that the Tomcat init script incorrectly
handled creating log files. A remote attacker could possibly use this
issue to obtain root privileges. (CVE-2016-1240)

Update instructions:

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

Ubuntu 16.04 LTS:
libservlet2.5-java 6.0.45+dfsg-1ubuntu0.2

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

References:
  https://usn.ubuntu.com/3081-2
  https://usn.ubuntu.com/3081-1
CVE-2016-1240

Package Information:
  https://launchpad.net/ubuntu/+source/tomcat6/6.0.45+dfsg-1ubuntu0.2