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Red Hat Security Advisory 2021-0106-01

Red Hat Security Advisory 2021-0106-01
Posted Jan 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0106-01 - Red Hat Decision Manager is an open source decision management platform that combines business rules management, complex event processing, Decision Model & Notation execution, and Business Optimizer for solving planning problems. It automates business decisions and makes that logic available to the entire business. This release of Red Hat Decision Manager 7.9.1 serves as an update to Red Hat Decision Manager 7.9.0, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References. Issues addressed include code execution and deserialization vulnerabilities.

tags | advisory, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-26217
SHA-256 | bbdcc017d30440cfcba2abc8f04c029f5e2566c59cfbde27608a6b81045fb0ed

Red Hat Security Advisory 2021-0106-01

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

Synopsis: Important: Red Hat Decision Manager 7.9.1 security update
Advisory ID: RHSA-2021:0106-01
Product: Red Hat Decision Manager
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0106
Issue date: 2021-01-13
CVE Names: CVE-2020-26217
====================================================================
1. Summary:

An update is now available for Red Hat Decision Manager.

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 Decision Manager is an open source decision management platform
that combines business rules management, complex event processing, Decision
Model & Notation (DMN) execution, and Business Optimizer for solving
planning problems. It automates business decisions and makes that logic
available to the entire business.

This release of Red Hat Decision Manager 7.9.1 serves as an update to Red
Hat Decision Manager 7.9.0, and includes bug fixes and enhancements, which
are documented in the Release Notes document linked to in the References.

Security Fix(es):

* xstream: remote code execution due to insecure XML deserialization when
relying on blocklists (CVE-2020-26217)

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:

For on-premise installations, before applying the update, back up your
existing installation, including all applications, configuration files,
databases and database settings, and so on.

It is recommended to halt the server by stopping the JBoss Application
Server process before installing this update; after installing the update,
restart the server by starting the JBoss Application Server process.

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/):

1898907 - CVE-2020-26217 XStream: remote code execution due to insecure XML deserialization when relying on blocklists

5. References:

https://access.redhat.com/security/cve/CVE-2020-26217
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 2021 Red Hat, Inc.
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