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Red Hat Security Advisory 2020-3501-01

Red Hat Security Advisory 2020-3501-01
Posted Aug 19, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3501-01 - 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. Issues addressed include XML injection, denial of service, deserialization, and improper authorization vulnerabilities.

tags | advisory, web, denial of service, vulnerability
systems | linux, redhat
advisories | 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, CVE-2020-1710, CVE-2020-1728, CVE-2020-1748
SHA-256 | e390128d6a2fbef2d35e6bbd560115b1a61fac337fcd0f0f08ca070348829b0b

Red Hat Security Advisory 2020-3501-01

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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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