Number: AV21-455
Date: 13 September 2021
On 13 September 2021 Apple published Security Updates to address vulnerabilities in the following products:
- iOS – versions prior to 14.8
- iPadOS – versions prior to 14.8
- watchOS – versions prior to 7.6.2
- macOS Big Sur – versions prior to 11.6
- MacOS Catalina – versions prior to 2021-005
- Safari – versions prior to 14.1.2
Exploitation of these vulnerabilities could allow arbitrary code execution.
The Cyber Centre encourages users and administrators to review the following web link and apply the necessary update.
iOS and iPadOS
https://support.apple.com/en-ca/HT212807
watchOS
https://support.apple.com/en-ca/HT212806
MacOS Big Sur
https://support.apple.com/en-ca/HT212804
MacOS Catalina
https://support.apple.com/en-ca/HT212805
Safari
https://support.apple.com/en-ca/HT212808
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.