Home / mailings [RHSA-2023:3892-01] Important: Red Hat Single Sign-On 7.6.4 security update
Posted on 27 June 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: Red Hat Single Sign-On 7.6.4 security update
Advisory ID: RHSA-2023:3892-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3892
Issue date: 2023-06-27
CVE Names: CVE-2021-39144 CVE-2022-4361 CVE-2023-1108
CVE-2023-1664 CVE-2023-2422 CVE-2023-2585
=====================================================================
1. Summary:
A security update is now available for Red Hat Single Sign-On 7.6 from the
Customer Portal.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Description:
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.
3. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
4. Bugs fixed (https://bugzilla.redhat.com/):
1997772 - CVE-2021-39144 xstream: Arbitrary code execution via unsafe deserialization of sun.tracing.*
2151618 - CVE-2022-4361 Keycloak | RHSSO: XSS due to lax URI scheme validation
2174246 - CVE-2023-1108 Undertow: Infinite loop in SslConduit during close
2182196 - CVE-2023-1664 keycloak: Untrusted Certificate Validation
2191668 - CVE-2023-2422 keycloak: oauth client impersonation
2196335 - CVE-2023-2585 keycloak: client access via device auth request spoof
5. References:
https://access.redhat.com/security/cve/CVE-2021-39144
https://access.redhat.com/security/cve/CVE-2022-4361
https://access.redhat.com/security/cve/CVE-2023-1108
https://access.redhat.com/security/cve/CVE-2023-1664
https://access.redhat.com/security/cve/CVE-2023-2422
https://access.redhat.com/security/cve/CVE-2023-2585
https://access.redhat.com/security/updates/classification/#important
6. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2023 Red Hat, Inc.
