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             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.0631
             IBM MQ is affected by FasterXML jackson-databind
             vulnerabilities (CVE-2022-42003, CVE-2022-42004)
                              3 February 2023

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM MQ
Publisher:         IBM
Operating System:  AIX
                   Linux variants
                   Linux on IBM Z Systems
                   IBM i
                   Windows
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-42004 CVE-2022-42003 

Original Bulletin: 
   https://www.ibm.com/support/pages/node/6952181

Comment: CVSS (Max):  6.2 CVE-2022-42004 (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
         CVSS Source: IBM
         Calculator:  https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: IBM MQ is affected by FasterXML jackson-databind
vulnerabilities (CVE-2022-42003, CVE-2022-42004)

Document Information

Document number    : 6952181
Modified date      : 02 February 2023
Product            : IBM MQ
Component          : -
Software version   : 9.2.0, 9.3.0
Operating system(s): AIX
                     Linux
                     Linux on IBM Z Systems
                     IBM i
                     Windows

Security Bulletin


Summary

Multiple issues were identified with the Jackson library that is used within
the IBM MQ Console to provide REST API functionality.

Vulnerability Details

CVEID: CVE-2022-42003
DESCRIPTION: FasterXML jackson-databind is vulnerable to a denial of service,
caused by a lack of a check in the primitive value deserializers when the
UNWRAP_SINGLE_VALUE_ARRAYS feature is enabled. By sending a specially-crafted
request using deep wrapper array nesting, a local attacker could exploit this
vulnerability to exhaust all available resources.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
237662 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2022-42004
DESCRIPTION: FasterXML jackson-databind is vulnerable to a denial of service,
caused by a lack of a check in in the BeanDeserializer._deserializeFromArray
function. By sending a specially-crafted request using deeply nested arrays, a
local attacker could exploit this vulnerability to exhaust all available
resources.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
237660 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

+--------------------+----------+
|Affected Product(s) |Version(s)|
+--------------------+----------+
|IBM MQ              |9.2 CD    |
+--------------------+----------+
|IBM MQ              |9.3 CD    |
+--------------------+----------+
|IBM MQ              |9.3 LTS   |
+--------------------+----------+

The following installable MQ components are affected by the vulnerability:
o REST API and Console

If you are running any of these listed components, please apply the remediation
/fixes as described below. For more information on the definitions of
components used in this list see https://www.ibm.com/support/pages/
installable-component-names-used-ibm-mq-security-bulletins

Remediation/Fixes

This issue was resolved under APAR IT42344

IBM MQ Version 9.3 LTS

Apply fix pack 9.3.0.2

IBM MQ version 9.2 CD and 9.3 CD

Upgrade to IBM MQ 9.3.1 and apply cumulative security update 9.3.1.1

Workarounds and Mitigations

None

Change History

02 Feb 2023: Initial Publication

*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF
ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to
address potential vulnerabilities, IBM periodically updates the record of
components contained in our product offerings. As part of that effort, if IBM
identifies previously unidentified packages in a product/service inventory, we
address relevant vulnerabilities regardless of CVE date. Inclusion of an older
CVEID does not demonstrate that the referenced product has been used by IBM
since that date, nor that IBM was aware of a vulnerability as of that date. We
are making clients aware of relevant vulnerabilities as we become aware of
them. "Affected Products and Versions" referenced in IBM Security Bulletins are
intended to be only products and versions that are supported by IBM and have
not passed their end-of-support or warranty date. Thus, failure to reference
unsupported or extended-support products and versions in this Security Bulletin
does not constitute a determination by IBM that they are unaffected by the
vulnerability. Reference to one or more unsupported versions in this Security
Bulletin shall not create an obligation for IBM to provide fixes for any
unsupported or extended-support products or versions.

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