Several security issues were fixed in Tomcat.
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)
25 July 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Tomcat.
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)
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon