RHSA-2021:5219: Important: Red Hat Single Sign-On security update on RHEL 8

Published Dec 20, 2021
·
Updated

Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.This is an asynchronous patch for Red Hat Single Sign-On 7.5, and includes one security fix.Security Fix: keycloak: Incorrect authorization allows unpriviledged users to create other users (CVE-2021-4133) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

2 affected componentsFixes available
redhat/rh-sso7-keycloak<15.0.2-3.redhat_00002.1.el8
15.0.2-3.redhat_00002.1.el8
redhat/rh-sso7-keycloak-server<15.0.2-3.redhat_00002.1.el8
15.0.2-3.redhat_00002.1.el8

Remediation

Event History

Feb 7, 2026
Advisory Published
via Red Hat·05:03 PM
Data Sourced
via Red Hat·05:03 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2021:5219?

The severity of RHSA-2021:5219 is classified as important.

2

How do I fix RHSA-2021:5219?

To fix RHSA-2021:5219, update the rh-sso7-keycloak and rh-sso7-keycloak-server packages to version 15.0.2-3.redhat_00002.1.el8.

3

What does RHSA-2021:5219 address?

RHSA-2021:5219 addresses security vulnerabilities in Red Hat Single Sign-On 7.5.

4

Which packages are affected by RHSA-2021:5219?

The affected packages for RHSA-2021:5219 include rh-sso7-keycloak and rh-sso7-keycloak-server.

5

Is there any special configuration needed after applying the fix for RHSA-2021:5219?

No special configuration is needed after applying the fix for RHSA-2021:5219, but it's advisable to verify your environment for any specific requirements.

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