Security Advisories›RHSA-2020:4004

RHSA-2020:4004 — Security Advisory

Red Hat Security Advisory: tomcat security and bug fix update

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Severity

Important

Red Hat Product Security

RHEL 7

Products

Official CSAF product identity

Published · September 30, 2020

Updated · August 5, 2026

Topic

An update for tomcat is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.

Security Fix(es):

  • tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS (CVE-2020-13935)

  • tomcat: session fixation when using FORM authentication (CVE-2019-17563)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.9 Release Notes linked from the References section.

Related CVEs

RHSA-2020:4004 — Red Hat Security Advisory: tomcat security and bug fix update | PulseLinux