Home / mailings [RHSA-2023:4924-01] Important: Red Hat Single Sign-On 7.6.5 security update
Posted on 31 August 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: Red Hat Single Sign-On 7.6.5 security update
Advisory ID: RHSA-2023:4924-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4924
Issue date: 2023-08-31
CVE Names: CVE-2021-46877 CVE-2023-1436 CVE-2023-3223
=====================================================================
1. Summary:
A security update is now available for Red Hat Single Sign-On 7.6 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 7.6 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 7.6.5 serves as a replacement for
Red Hat Single Sign-On 7.6.4, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.
Security Fix(es):
* undertow: OutOfMemoryError due to @MultipartConfig handling
(CVE-2023-3223)
* jackson-databind: Possible DoS if using JDK serialization to serialize
JsonNode (CVE-2021-46877)
* jettison: Uncontrolled Recursion in JSONArray (CVE-2023-1436)
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 this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
4. Bugs fixed (https://bugzilla.redhat.com/):
2182788 - CVE-2023-1436 jettison: Uncontrolled Recursion in JSONArray
2185707 - CVE-2021-46877 jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode
2209689 - CVE-2023-3223 undertow: OutOfMemoryError due to @MultipartConfig handling
5. References:
https://access.redhat.com/security/cve/CVE-2021-46877
https://access.redhat.com/security/cve/CVE-2023-1436
https://access.redhat.com/security/cve/CVE-2023-3223
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=securityPatches&version=7.6
6. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2023 Red Hat, Inc.
