RHSA-2023:2707: Moderate: Red Hat Single Sign-On 7.6.3 security update on RHEL 9

Published May 10, 2023
·
Updated

Red Hat Single Sign-On 7.6 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 release of Red Hat Single Sign-On 7.6.3 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.Security Fix(es): okhttp: information disclosure via improperly used cryptographic function (CVE-2021-0341) undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492) snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752) dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854) codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881) apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider (CVE-2022-45787) RESTEasy: creation of insecure temp files (CVE-2023-0482) 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.

Affected Software

2 affected componentsFixes available
redhat/rh-sso7-keycloak<18.0.7-1.redhat_00001.1.el9
18.0.7-1.redhat_00001.1.el9
redhat/rh-sso7-keycloak-server<18.0.7-1.redhat_00001.1.el9
18.0.7-1.redhat_00001.1.el9

Remediation

Event History

May 26, 2026
Advisory Published
via Red Hat·08:21 PM
Data Sourced
via Red Hat·08:21 PM
RemedyDescriptionAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of RHSA-2023:2707?

The severity of RHSA-2023:2707 is classified as critical.

2

How do I fix RHSA-2023:2707?

To fix RHSA-2023:2707, you should upgrade to the patched version of the affected packages rh-sso7-keycloak and rh-sso7-keycloak-server to version 18.0.7-1.redhat_00001.1.el9.

3

What versions are affected by RHSA-2023:2707?

RHSA-2023:2707 affects versions of rh-sso7-keycloak and rh-sso7-keycloak-server earlier than 18.0.7-1.redhat_00001.1.el9.

4

What does RHSA-2023:2707 address?

RHSA-2023:2707 addresses vulnerabilities found in Red Hat Single Sign-On 7.6.3 that could allow for unauthorized access.

5

Is RHSA-2023:2707 related to Keycloak?

Yes, RHSA-2023:2707 is based on the Keycloak project and impacts Red Hat's implementation of Single Sign-On capabilities.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203