IBM security advisory

Number: AV21-594
Date: 22 November 2021

Between 15 and 21 November 2021 IBM published Security Bulletins to address vulnerabilities in multiple products. Included were critical updates for the following:

  • IBM Cloud Pak System – version 2.3
  • IBM InfoSphere Information Server – version 11.7
  • IBM MQ for HPE NonStop – version 8.1.0
  • WebSphere MQ V5.3 for HP NonStop Server (MIPS and Itanium) – version 5.3.1

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

IBM Cloud Pak System

IBM InfoSphere Information Server

IBM MQ for HPE NonStop

WebSphere MQ V5.3 for HP NonStop Server (MIPS and Itanium)

IBM Product Security Incident Response

Note to Readers

The Canadian Centre for Cyber Security (Cyber Centre) operates as part of the Communications Security Establishment.  We are Canada’s national authority on cyber security and we lead the government’s response to cyber security events. As Canada's national computer security incident response team, the Cyber Centre works in close collaboration with government departments, critical infrastructure, Canadian businesses and international partners to prepare for, respond to, mitigate, and recover from cyber events. We do this by providing authoritative advice and support, and coordinating information sharing and incident response. The Cyber Centre is outward-facing, welcoming partnerships that help build a stronger, more resilient cyber space in Canada.


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