Red Hat Security Advisory 2022-6787-01 - 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 release of Red Hat Single Sign-On 7.5.3 serves as a replacement for Red Hat Single Sign-On 7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include HTTP request smuggling, code execution, cross site scripting, and denial of service vulnerabilities.
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Red Hat Security Advisory
Synopsis: Moderate: Red Hat Single Sign-On 7.5.3 security update
Advisory ID: RHSA-2022:6787-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6787
Issue date: 2022-10-04
CVE Names: CVE-2020-36518 CVE-2021-42392 CVE-2021-43797
CVE-2022-0084 CVE-2022-0225 CVE-2022-0866
CVE-2022-2256 CVE-2022-2668
====================================================================
1. Summary:
A security update is now available for Red Hat Single Sign-On 7.5 from the
Customer Portal.
Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 7.5 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 release of Red Hat Single Sign-On 7.5.3 serves as a replacement for
Red Hat Single Sign-On 7.5.2, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.
Security Fix(es):
* jackson-databind: denial of service via a large depth of nested objects
(CVE-2020-36518)
* h2: Remote Code Execution in Console (CVE-2021-42392)
* netty: control chars in header names may lead to HTTP request smuggling
(CVE-2021-43797)
* xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of
stderr (CVE-2022-0084)
* keycloak: Stored XSS in groups dropdown (CVE-2022-0225)
* wildfly: Wildfly management of EJB Session context returns wrong caller
principal with Elytron Security enabled (CVE-2022-0866)
* keycloak-saml-core: keycloak: Uploading of SAML javascript protocol
mapper scripts through the admin (CVE-2022-2668)
* keycloak-core: keycloak: improper input validation permits script
injection (CVE-2022-2256)
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 the update, back up your existing installation, including
all applications, configuration files, databases and database settings, and
so on.
The References section of this erratum contains a download link (you must
log in to download the update).
4. Bugs fixed (https://bugzilla.redhat.com/):
2031958 - CVE-2021-43797 netty: control chars in header names may lead to HTTP request smuggling
2039403 - CVE-2021-42392 h2: Remote Code Execution in Console
2040268 - CVE-2022-0225 keycloak: Stored XSS in groups dropdown
2060929 - CVE-2022-0866 wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security enabled
2064226 - CVE-2022-0084 xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr
2064698 - CVE-2020-36518 jackson-databind: denial of service via a large depth of nested objects
2101942 - CVE-2022-2256 keycloak: improper input validation permits script injection
2115392 - CVE-2022-2668 keycloak: Uploading of SAML javascript protocol mapper scripts through the admin console
5. References:
https://access.redhat.com/security/cve/CVE-2020-36518
https://access.redhat.com/security/cve/CVE-2021-42392
https://access.redhat.com/security/cve/CVE-2021-43797
https://access.redhat.com/security/cve/CVE-2022-0084
https://access.redhat.com/security/cve/CVE-2022-0225
https://access.redhat.com/security/cve/CVE-2022-0866
https://access.redhat.com/security/cve/CVE-2022-2256
https://access.redhat.com/security/cve/CVE-2022-2668
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/products/red-hat-single-sign-on/
6. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2022 Red Hat, Inc.
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