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

Synopsis:          Important: Red Hat Single Sign-On 7.4.2 security update
Advisory ID:       RHSA-2020:3501-01
Product:           Red Hat Single Sign-On
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3501
Issue date:        2020-08-18
CVE Names:         CVE-2020-1710 CVE-2020-1728 CVE-2020-1748
                   CVE-2020-10672 CVE-2020-10673 CVE-2020-10683
                   CVE-2020-10687 CVE-2020-10693 CVE-2020-10714
                   CVE-2020-10718 CVE-2020-10740 CVE-2020-10758
                   CVE-2020-11612 CVE-2020-14307
====================================================================
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 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 7.4 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 7.4.2 serves as a replacement for
Red Hat Single Sign-On 7.4.1, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.

Security Fix(es):

* EAP: field-name is not parsed in accordance to RFC7230 (CVE-2020-1710)

* jackson-databind: mishandles the interaction between serialization
gadgets and typing which could result in remote command execution
(CVE-2020-10672)

* jackson-databind: mishandles the interaction between serialization
gadgets and typing which could result in remote command execution
(CVE-2020-10673)

* wildfly: unsafe deserialization in Wildfly Enterprise Java Beans
(CVE-2020-10740)

* keycloak: DoS by sending multiple simultaneous requests with a
Content-Length header value greater than actual byte count of request body
(CVE-2020-10758)

* Wildfly: Improper authorization issue in WildFlySecurityManager when
using alternative protection domain (CVE-2020-1748)

* dom4j: XML External Entity vulnerability in default SAX parser
(CVE-2020-10683)

* Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid
characters in HTTP requests (CVE-2020-10687)

* hibernate-validator: Improper input validation in the interpolation of
constraint error messages (CVE-2020-10693)

* wildfly-elytron: session fixation when using FORM authentication
(CVE-2020-10714)

* wildfly: exposed setting of TCCL via the EmbeddedManagedProcess API
(CVE-2020-10718)

* wildfly: EJB SessionOpenInvocations may not be removed properly after a
response is received causing Denial of Service (CVE-2020-14307)

* netty: compression/decompression codecs don't enforce limits on buffer
allocation sizes (CVE-2020-11612)

* keycloak: security headers missing on REST endpoints (CVE-2020-1728)

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/):

1694235 - CVE-2020-10683 dom4j: XML External Entity vulnerability in default SAX parser
1785049 - CVE-2020-10687 Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests
1793970 - CVE-2020-1710 EAP: field-name is not parsed in accordance to RFC7230
1800585 - CVE-2020-1728 keycloak: security headers missing on REST endpoints
1805501 - CVE-2020-10693 hibernate-validator: Improper input validation in the interpolation of constraint error messages
1807707 - CVE-2020-1748 Wildfly: Improper authorization issue in WildFlySecurityManager when using alternative protection domain
1815470 - CVE-2020-10673 jackson-databind: mishandles the interaction between serialization gadgets and typing which could result in remote command execution
1815495 - CVE-2020-10672 jackson-databind: mishandles the interaction between serialization gadgets and typing which could result in remote command execution
1816216 - CVE-2020-11612 netty: compression/decompression codecs don't enforce limits on buffer allocation sizes
1825714 - CVE-2020-10714 wildfly-elytron: session fixation when using FORM authentication
1828476 - CVE-2020-10718 wildfly: exposed setting of TCCL via the EmbeddedManagedProcess API
1834512 - CVE-2020-10740 wildfly: unsafe deserialization in Wildfly Enterprise Java Beans
1843849 - CVE-2020-10758 keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body
1851327 - CVE-2020-14307 wildfly: EJB SessionOpenInvocations may not be removed properly after a response is received causing Denial of Service

5. References:

https://access.redhat.com/security/cve/CVE-2020-1710
https://access.redhat.com/security/cve/CVE-2020-1728
https://access.redhat.com/security/cve/CVE-2020-1748
https://access.redhat.com/security/cve/CVE-2020-10672
https://access.redhat.com/security/cve/CVE-2020-10673
https://access.redhat.com/security/cve/CVE-2020-10683
https://access.redhat.com/security/cve/CVE-2020-10687
https://access.redhat.com/security/cve/CVE-2020-10693
https://access.redhat.com/security/cve/CVE-2020-10714
https://access.redhat.com/security/cve/CVE-2020-10718
https://access.redhat.com/security/cve/CVE-2020-10740
https://access.redhat.com/security/cve/CVE-2020-10758
https://access.redhat.com/security/cve/CVE-2020-11612
https://access.redhat.com/security/cve/CVE-2020-14307
https://access.redhat.com/security/updates/classification/#important
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 2020 Red Hat, Inc.
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