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====================================================================                   
Red Hat Security Advisory

Synopsis:          Moderate: Red Hat Single Sign-On 7.4.6 security update
Advisory ID:       RHSA-2021:0974-01
Product:           Red Hat Single Sign-On
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0974
Issue date:        2021-03-23
CVE Names:         CVE-2020-7676 CVE-2020-8908 CVE-2020-14302
                   CVE-2020-28052 CVE-2020-35510 CVE-2021-20220
                   CVE-2021-20250
====================================================================
1. Summary:

A security update is now available for Red Hat Single Sign-On 7.4 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 7.4 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 7.4.6 serves as a replacement for
Red Hat Single Sign-On 7.4.5, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.

Security Fix(es):

* bouncycastle: password bypass in OpenBSDBCrypt.checkPassword utility
possible (CVE-2020-28052)

* nodejs-angular: XSS due to regex-based HTML replacement (CVE-2020-7676)

* jboss-remoting: Threads hold up forever in the EJB server by suppressing
the ack from an EJB client (CVE-2020-35510)

* undertow: Possible regression in fix for CVE-2020-10687 (CVE-2021-20220)

* wildfly: Information disclosure due to publicly accessible privileged
actions in JBoss EJB Client (CVE-2021-20250)

* guava: local information disclosure via temporary directory created with
unsafe permissions (CVE-2020-8908)

* keycloak: reusable "state" parameter at redirect_uri endpoint enables
possibility of replay attacks (CVE-2020-14302)

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.

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/):

1849206 - CVE-2020-7676 nodejs-angular: XSS due to regex-based HTML replacement
1849584 - CVE-2020-14302 keycloak: reusable "state" parameter at redirect_uri endpoint enables possibility of replay attacks
1905796 - CVE-2020-35510 jboss-remoting: Threads hold up forever in the EJB server by suppressing the ack from an EJB client
1906919 - CVE-2020-8908 guava: local information disclosure via temporary directory created with unsafe permissions
1912881 - CVE-2020-28052 bouncycastle: password bypass in OpenBSDBCrypt.checkPassword utility possible
1923133 - CVE-2021-20220 undertow: Possible regression in fix for CVE-2020-10687
1929479 - CVE-2021-20250 wildfly: Information disclosure due to publicly accessible privileged actions in JBoss EJB Client

5. References:

https://access.redhat.com/security/cve/CVE-2020-7676
https://access.redhat.com/security/cve/CVE-2020-8908
https://access.redhat.com/security/cve/CVE-2020-14302
https://access.redhat.com/security/cve/CVE-2020-28052
https://access.redhat.com/security/cve/CVE-2020-35510
https://access.redhat.com/security/cve/CVE-2021-20220
https://access.redhat.com/security/cve/CVE-2021-20250
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=securityPatches&version=7.4
https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.4/

6. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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