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

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

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 <https://www.ibm.com/support/pages/installable-component-names-used-ibm-mq-security-bulletins&gt;

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