Several security issues were fixed in Tomcat.
It was discovered that Tomcat incorrectly handled certain pipelined requests when sendfile was used. A remote attacker could use this issue to obtain wrong responses possibly containing sensitive information. (CVE-2017-5647)
8 January 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 certain pipelined requests when sendfile was used. A remote attacker could use this issue to obtain wrong responses possibly containing sensitive information. (CVE-2017-5647)
It was discovered that Tomcat incorrectly used the appropriate facade object. A malicious application could possibly use this to bypass Security Manager restrictions. (CVE-2017-5648)
It was discovered that Tomcat incorrectly handled error pages. A remote attacker could possibly use this issue to replace or remove the custom error page. (CVE-2017-5664)
It was discovered that Tomcat incorrectly handled the CORS filter. A remote attacker could possibly use this issue to perform cache poisoning. (CVE-2017-7674)
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