RHSA-2023:3892: Important: Red Hat Single Sign-On 7.6.4 security update
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 7.6.4 serves as a replacement for Red Hat Single Sign-On 7.6.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.Security Fix(es): keycloak: Cross-site scripting when validating URI-schemes on SAML and OIDC (CVE-2022-4361) keycloak: oauth client impersonation (CVE-2023-2422) keycloak: Untrusted Certificate Validation (CVE-2023-1664) undertow: Infinite loop in SslConduit during close (CVE-2023-1108) keycloak: client access via device auth request spoof (CVE-2023-2585) xstream: Arbitrary code execution via unsafe deserialization of sun.tracing. (CVE-2021-39144) 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.
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Frequently Asked Questions
What is the severity of RHSA-2023:3892?
The severity of RHSA-2023:3892 is classified as critical.
How do I fix RHSA-2023:3892?
To fix RHSA-2023:3892, update your Red Hat Single Sign-On to version 7.6.4 or later.
What vulnerabilities are addressed by RHSA-2023:3892?
RHSA-2023:3892 addresses multiple vulnerabilities related to authentication security flaws in Red Hat Single Sign-On 7.6.
Is it necessary to apply the RHSA-2023:3892 update immediately?
Yes, it is recommended to apply the RHSA-2023:3892 update immediately to mitigate the critical vulnerabilities.
How can I verify if my system is affected by RHSA-2023:3892?
To verify if your system is affected by RHSA-2023:3892, check the version of your Red Hat Single Sign-On installation.