[USN-4251-1] Tomcat vulnerabilities

Marc Deslauriers marc.deslauriers at canonical.com
Mon Jan 27 16:21:53 UTC 2020

Ubuntu Security Notice USN-4251-1
January 27, 2020

tomcat8 vulnerabilities

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

- Ubuntu 16.04 LTS


Several security issues were fixed in Tomcat.

Software Description:
- tomcat8: Servlet and JSP engine


It was discovered that Tomcat incorrectly handled the RMI registry when
configured with the JMX Remote Lifecycle Listener. A local attacker could
possibly use this issue to obtain credentials and gain complete control
over the Tomcat instance. (CVE-2019-12418)

It was discovered that Tomcat incorrectly handled FORM authentication. A
remote attacker could possibly use this issue to perform a session fixation
attack. (CVE-2019-17563)

Update instructions:

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

Ubuntu 16.04 LTS:
  libtomcat8-java                 8.0.32-1ubuntu1.11
  tomcat8                         8.0.32-1ubuntu1.11

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

  CVE-2019-12418, CVE-2019-17563

Package Information:

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