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Red Hat Security Advisory 2021-5170-01

Red Hat Security Advisory 2021-5170-01
Posted Dec 16, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-5170-01 - 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 7.4.10 serves as a replacement for Red Hat Single Sign-On 7.4.9, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include an information leakage vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-20289, CVE-2021-3629, CVE-2021-3642, CVE-2021-3717, CVE-2021-37714, CVE-2021-40690
SHA-256 | 7574e9d9a51e537267bd70407996077232803ce301b3fe0069d0d580ddb38725

Red Hat Security Advisory 2021-5170-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: Red Hat Single Sign-On 7.4.10 security update
Advisory ID: RHSA-2021:5170-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2021:5170
Issue date: 2021-12-15
CVE Names: CVE-2021-3629 CVE-2021-3642 CVE-2021-3717
CVE-2021-20289 CVE-2021-37714 CVE-2021-40690
=====================================================================

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 7.4.10 serves as a replacement for
Red Hat Single Sign-On 7.4.9, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.

Security Fix(es):

* undertow: potential security issue in flow control over HTTP/2 may lead
to DOS (CVE-2021-3629)

* wildfly-elytron: possible timing attack in ScramServer (CVE-2021-3642)

* wildfly: incorrect JBOSS_LOCAL_USER challenge location may lead to giving
access to all the local users (CVE-2021-3717)

* jsoup: Crafted input may cause the jsoup HTML and XML parser to get stuck
(CVE-2021-37714)

* xml-security: XPath Transform abuse allows for information disclosure
(CVE-2021-40690)

* resteasy: Error message exposes endpoint class information
(CVE-2021-20289)

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/):

1935927 - CVE-2021-20289 resteasy: Error message exposes endpoint class information
1977362 - CVE-2021-3629 undertow: potential security issue in flow control over HTTP/2 may lead to DOS
1981407 - CVE-2021-3642 wildfly-elytron: possible timing attack in ScramServer
1991305 - CVE-2021-3717 wildfly: incorrect JBOSS_LOCAL_USER challenge location may lead to giving access to all the local users
1995259 - CVE-2021-37714 jsoup: Crafted input may cause the jsoup HTML and XML parser to get stuck
2011190 - CVE-2021-40690 xml-security: XPath Transform abuse allows for information disclosure

5. References:

https://access.redhat.com/security/cve/CVE-2021-3629
https://access.redhat.com/security/cve/CVE-2021-3642
https://access.redhat.com/security/cve/CVE-2021-3717
https://access.redhat.com/security/cve/CVE-2021-20289
https://access.redhat.com/security/cve/CVE-2021-37714
https://access.redhat.com/security/cve/CVE-2021-40690
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/
https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.4/html/release_notes/index

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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