Number: AV21-541
Date: 28 October 2021
On 27 October 2021 Apple published a Security Update to address vulnerabilities in the following product:
- Safari – versions prior to 15.1
Exploitation of some of these vulnerabilities could result in information disclosure and arbitrary code execution.
The Cyber Centre encourages users and administrators to review the following web links and apply the necessary updates.
Apple Security Update (Safari)
https://support.apple.com/en-ca/HT212875
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.