Red Hat Security Advisory 2023-3885-01 - 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 on RHEL 9 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. Issues addressed include a cross site scripting vulnerability.
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Red Hat Security Advisory
Synopsis: Important: Red Hat Single Sign-On 7.6.4 security update on RHEL 9
Advisory ID: RHSA-2023:3885-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3885
Issue date: 2023-06-27
CVE Names: CVE-2022-4361 CVE-2023-1108 CVE-2023-1664
CVE-2023-2422 CVE-2023-2585
=====================================================================
1. Summary:
New Red Hat Single Sign-On 7.6.4 packages are now available for Red Hat
Enterprise Linux 9.
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. Relevant releases/architectures:
Red Hat Single Sign-On 7.6 for RHEL 9 - noarch
3. 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 on RHEL 9 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)
* undertow: Infinite loop in SslConduit during close (CVE-2023-1108)
* keycloak: oauth client impersonation (CVE-2023-2422)
* keycloak: Untrusted Certificate Validation (CVE-2023-1664)
* keycloak: client access via device auth request spoof (CVE-2023-2585)
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
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
6. Package List:
Red Hat Single Sign-On 7.6 for RHEL 9:
Source:
rh-sso7-keycloak-18.0.8-1.redhat_00001.1.el9sso.src.rpm
noarch:
rh-sso7-keycloak-18.0.8-1.redhat_00001.1.el9sso.noarch.rpm
rh-sso7-keycloak-server-18.0.8-1.redhat_00001.1.el9sso.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
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
https://access.redhat.com/articles/11258
8. 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.
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