Security Bulletin: A security vulnerability in Node.js xmldom and msgpack5 module affects IBM Cloud Pak for Multicloud Management Managed Service

Summary

A security vulnerability in Node.js xmldom and msgpack5 module affects IBM Cloud Pak for Multicloud Management Managed Service.

Vulnerability Details

CVEID:CVE-2021-21366
**DESCRIPTION:**Node.js xmldom module could allow a remote attacker to bypass security restrictions, caused by improper preserve of system identifiers, FPIs or namespaces during XML processing. By repeatedly parsing and serializing specially-crafted documents, an attacker could exploit this vulnerability to cause unexpected syntactic changes in some downstream applications.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198139 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2021-21368
**DESCRIPTION:**Node.js msgpack5 module could allow a remote authenticated attacker to execute arbitrary code on the system, caused by a prototype poisoning flaw when decodes a map containing a key proto. By sending a specially-crafted MessagePack data, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 6.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/198140 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

Upgrade to IBM Cloud Pak for Multicloud Management 2.3 by following the instructions in <https://www.ibm.com/docs/en/cloud-paks/cp-management/2.3.x?topic=installation-upgrade.&gt;

Workarounds and Mitigations

None