RHSA-2020:4004: Important: tomcat security and bug fix update
Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies.<br>Security Fix(es):<br><li> tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS (CVE-2020-13935)</li> <li> tomcat: session fixation when using FORM authentication (CVE-2019-17563)</li> 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.<br>Additional Changes:<br>For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.9 Release Notes linked from the References section.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2020:4004?
The severity of RHSA-2020:4004 is classified as important due to potential denial of service vulnerabilities.
How do I fix RHSA-2020:4004?
To fix RHSA-2020:4004, upgrade to the fixed version tomcat-7.0.76-15.el7 or later.
What vulnerabilities are addressed in RHSA-2020:4004?
RHSA-2020:4004 addresses multiple vulnerabilities, including a denial of service issue related to malformed WebSocket frames.
Which versions of Apache Tomcat are affected by RHSA-2020:4004?
Affected versions include Red Hat Apache Tomcat 7.0.76-15.el7 and earlier.
Is session fixation a concern in RHSA-2020:4004?
Yes, RHSA-2020:4004 includes a session fixation vulnerability that needs to be addressed.