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

Synopsis:          Important: Red Hat Single Sign-On 7.3.6 security update
Advisory ID:       RHSA-2020:0445-01
Product:           Red Hat Single Sign-On
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:0445
Issue date:        2020-02-06
CVE Names:         CVE-2019-10173 CVE-2019-10219 CVE-2019-14540 
                   CVE-2019-14892 CVE-2019-14893 CVE-2019-16335 
                   CVE-2019-16869 CVE-2019-16942 CVE-2019-16943 
                   CVE-2019-17267 CVE-2019-17531 
=====================================================================

1. Summary:

A security update is now available for Red Hat Single Sign-On 7.3 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:

<< AUTOMATICALLY GENERATED, EDIT PLEASE >>
Red Hat Single Sign-On 7.3 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 7.3.6 serves as a replacement for
Red Hat Single Sign-On 7.3.5, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.

Security Fix(es):

* jackson-databind: enabling default typing leads to code execution
(CVE-2019-17531)
* netty: HTTP request smuggling by mishandled whitespace before the colon
in HTTP headers (CVE-2019-16869)
* jackson-databind: Serialization gadgets in classes of the p6spy package
(CVE-2019-16943)
* jackson-databind: Serialization gadgets in classes of the commons-dbcp
package (CVE-2019-16942)
* jackson-databind: Serialization gadgets in classes of the xalan package
(CVE-2019-14893)
* jackson-databind: Serialization gadgets in classes of the
commons-configuration package (CVE-2019-14892)
* jackson-databind: Serialization gadgets in classes of the ehcache package
(CVE-2019-17267)
* jackson-databind: polymorphic typing issue related to
com.zaxxer.hikari.HikariConfig (CVE-2019-14540)
* jackson-databind: polymorphic typing issue related to
com.zaxxer.hikari.HikariDataSource (CVE-2019-16335)
* hibernate-validator: safeHTML validator allows XSS (CVE-2019-10219)
* xstream: remote code execution due to insecure XML deserialization
regression (CVE-2019-10173)

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/):

1722971 - CVE-2019-10173 xstream: remote code execution due to insecure XML deserialization (regression of  CVE-2013-7285)
1738673 - CVE-2019-10219 hibernate-validator: safeHTML validator allows XSS
1755831 - CVE-2019-16335 jackson-databind: polymorphic typing issue related to com.zaxxer.hikari.HikariDataSource
1755849 - CVE-2019-14540 jackson-databind: polymorphic typing issue related to com.zaxxer.hikari.HikariConfig
1758167 - CVE-2019-17267 jackson-databind: Serialization gadgets in classes of the ehcache package
1758171 - CVE-2019-14892 jackson-databind: Serialization gadgets in classes of the commons-configuration package
1758182 - CVE-2019-14893 jackson-databind: Serialization gadgets in classes of the xalan package
1758187 - CVE-2019-16942 jackson-databind: Serialization gadgets in classes of the commons-dbcp package
1758191 - CVE-2019-16943 jackson-databind: Serialization gadgets in classes of the p6spy package
1758619 - CVE-2019-16869 netty: HTTP request smuggling by mishandled whitespace before the colon in HTTP headers
1775293 - CVE-2019-17531 jackson-databind: polymorphic typing issue when enabling default typing for an externally exposed JSON endpoint and having apache-log4j-extra in the classpath leads to code execution

5. References:

https://access.redhat.com/security/cve/CVE-2019-10173
https://access.redhat.com/security/cve/CVE-2019-10219
https://access.redhat.com/security/cve/CVE-2019-14540
https://access.redhat.com/security/cve/CVE-2019-14892
https://access.redhat.com/security/cve/CVE-2019-14893
https://access.redhat.com/security/cve/CVE-2019-16335
https://access.redhat.com/security/cve/CVE-2019-16869
https://access.redhat.com/security/cve/CVE-2019-16942
https://access.redhat.com/security/cve/CVE-2019-16943
https://access.redhat.com/security/cve/CVE-2019-17267
https://access.redhat.com/security/cve/CVE-2019-17531
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 2020 Red Hat, Inc.
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