(RHSA-2020:1521) Important: Red Hat JBoss Web Server 5.3 release

Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (mod_cluster), the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library.

This release of Red Hat JBoss Web Server 5.3 serves as a replacement for Red Hat JBoss Web Server 5.2, and includes bug fixes, enhancements, and component
upgrades, which are documented in the Release Notes, linked to in the
References.

Security Fix(es):

• tomcat: Apache Tomcat AJP File Read/Inclusion Vulnerability (CVE-2020-1938)
• tomcat: local privilege escalation (CVE-2019-12418)
• tomcat: session fixation (CVE-2019-17563)
• tomcat: Regression in handling of Transfer-Encoding header allows for HTTP request smuggling (CVE-2019-17569)
• tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling (CVE-2020-1935)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.