## 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:
• 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

## Remediation/Fixes

This issue was resolved under APAR IT42344

**IBM MQ Version 9.3 LTS**

[Apply fix pack 9.3.0.2]( “Apply FixPack 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]( “Upgrade to IBM MQ 9.3.1.1” )

## Workarounds and Mitigations

None

## Get Notified about Future Security Bulletins

Subscribe to [My Notifications]() to be notified of important product support alerts like this.

### References

[Complete CVSS v3 Guide]( “Link resides outside of ibm.com” )
[On-line Calculator v3]( “Link resides outside of ibm.com” )

Off

## Related Information

[IBM Secure Engineering Web Portal]()
[IBM Product Security Incident Response Blog]()

## 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.

## Document Location

Worldwide

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