USN-3081-1: Tomcat vulnerability

Ubuntu Security Notice USN-3081-1

19th September, 2016

tomcat6, tomcat7, tomcat8 vulnerability

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

Ubuntu 16.04 LTS
Ubuntu 14.04 LTS
Ubuntu 12.04 LTS

Summary

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

Software description

tomcat6
– Servlet and JSP engine
tomcat7
– Servlet and JSP engine
tomcat8
– 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)

This update also reverts a change in behaviour introduced in USN-3024-1 by
setting mapperContextRootRedirectEnabled to True by default.

Update instructions

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

Ubuntu 16.04 LTS:: libtomcat8-java

8.0.32-1ubuntu1.2; tomcat8

8.0.32-1ubuntu1.2
Ubuntu 14.04 LTS:: tomcat7

7.0.52-1ubuntu0.7; libtomcat7-java

7.0.52-1ubuntu0.7
Ubuntu 12.04 LTS:: libtomcat6-java

6.0.35-1ubuntu3.8; tomcat6

6.0.35-1ubuntu3.8

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

CVE-2016-1240,

LP: 1609819

Source: USN-3081-1: Tomcat vulnerability

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