USN-3723-1: Tomcat vulnerabilities

25 July 2018

tomcat7, tomcat8 vulnerabilities

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

• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Tomcat.

Software Description

• tomcat8 - Servlet and JSP engine
• tomcat7 - Servlet and JSP engine

Details

It was discovered that Tomcat incorrectly handled decoding certain UTF-8 strings. A remote attacker could possibly use this issue to cause Tomcat to crash, resulting in a denial of service. (CVE-2018-1336)

It was discovered that the Tomcat WebSocket client incorrectly performed hostname verification. A remote attacker could possibly use this issue to intercept sensitive information. (CVE-2018-8034)

Update instructions

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

Ubuntu 16.04 LTS

libtomcat8-java - 8.0.32-1ubuntu1.7

tomcat8 - 8.0.32-1ubuntu1.7

Ubuntu 14.04 LTS

libtomcat7-java - 7.0.52-1ubuntu0.15

tomcat7 - 7.0.52-1ubuntu0.15

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

from Ubuntu Security Notices https://ift.tt/2LpKNZN