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Red Hat JBoss Web Server 5.4: RHSA-2020-5170-01 Moderate: DoS Attack

red hat
Calendar Grey November 23, 2020
Dist Redhat Esm H88
Canonical releases Ubuntu 22.10 packages to mitigate a low-severity security vulnerability affecting server instances.
Updated Red Hat JBoss Web Server 5.4.0 packages are now available for Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, and Red Hat Enterprise Linux 8

Solution

Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.

The References section of this erratum contains a download link for the update. You must be logged in to download the update.

Summary

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 5.4 serves as a replacement for Red Hat JBoss Web Server 5.3, and includes bug fixes, enhancements, and component upgrades, which are documented in the Release Notes, linked to in the References.
Security Fix(es):
* tomcat: specially crafted sequence of HTTP/2 requests can lead to DoS (CVE-2020-11996)
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.

Topics%20covered

Topics Covered

security advisory Red Hat DoS moderate severity security impact update available JBoss Web Server

References

https://access.redhat.com/security/cve/CVE-2020-11996 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat JBoss Web Server 5.4 for RHEL 6 Server:
Source: jws5-jboss-logging-3.4.1-1.Final_redhat_00001.1.el6jws.src.rpm jws5-mod_cluster-1.4.2-7.Final_redhat_00002.2.el6jws.src.rpm jws5-tomcat-9.0.36-6.redhat_5.2.el6jws.src.rpm jws5-tomcat-native-1.2.25-2.redhat_2.el6jws.src.rpm
i386: jws5-tomcat-native-1.2.25-2.redhat_2.el6jws.i686.rpm jws5-tomcat-native-debuginfo-1.2.25-2.redhat_2.el6jws.i686.rpm
noarch: jws5-jboss-logging-3.4.1-1.Final_redhat_00001.1.el6jws.noarch.rpm jws5-mod_cluster-1.4.2-7.Final_redhat_00002.2.el6jws.noarch.rpm jws5-mod_cluster-tomcat-1.4.2-7.Final_redhat_00002.2.el6jws.noarch.rpm jws5-tomcat-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-admin-webapps-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-docs-webapp-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-el-3.0-api-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-javadoc-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-jsp-2.3-api-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-lib-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-selinux-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-servlet-4.0-api-9.0.36-6.redhat_5.2.el6jws.noarch.rpm jws5-tomcat-webapps-9.0.36-6.redhat_5.2.el6jws.noarch.rpm
x86_64: jws5-tomcat-native-1.2.25-2.redhat_2.el6jws.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:5170-01
Product: Red Hat JBoss Web Server
Advisory URL: https://access.redhat.com/errata/RHSA-2020:5170
Issue date: 2020-11-23

Topic

Updated Red Hat JBoss Web Server 5.4.0 packages are now available for RedHat Enterprise Linux 6, Red Hat Enterprise Linux 7, and Red Hat EnterpriseLinux 8.Red Hat Product Security has rated this release as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat DoS moderate severity security impact update available JBoss Web Server

Relevant Releases Architectures

Red Hat JBoss Web Server 5.4 for RHEL 6 Server - i386, noarch, x86_64

Red Hat JBoss Web Server 5.4 for RHEL 7 Server - noarch, x86_64

Red Hat JBoss Web Server 5.4 for RHEL 8 - noarch, x86_64

Bugs Fixed

1851420 - CVE-2020-11996 tomcat: specially crafted sequence of HTTP/2 requests can lead to DoS

6. JIRA issues fixed (https://redhat.atlassian.net/jira/projects):

JWS-1050 - windows text files have linux-like lines ends

JWS-1445 - [ASF BZ 63765] NIO2 connector with OpenSSL 1.1.1 hangs with TLSv1.3

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