Debian: DSA-4596-1 Critical: Tomcat Security Issues Addressed

Several issues were discovered in the Tomcat servlet and JSP engine, which
could result in session fixation attacks, information disclosure, cross-site scripting, denial of service via resource exhaustion and insecure
redirects.

For the oldstable distribution (stretch), these problems have been fixed
in version 8.5.50-0+deb9u1. This update also requires an updated version
of tomcat-native which has been updated to 1.2.21-1~deb9u1.

We recommend that you upgrade your tomcat8 packages.

For the detailed security status of tomcat8 please refer to
its security tracker page at:

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/