Apple security advisory

Number: AV21-114
Date: 9 March 2021

On 8 March 2021 Apple published a Security Update to address vulnerabilities in the following products:

  •  macOS Big Sur – versions prior to 11.2.3
  •  Safari 14.0.3 – versions 14610.4.3.1.7 and 15610.4.3.1.7
  •  watchOS – versions prior to 7.3.2
  •  iOS and iPadOS – versions prior to 14.4.1

Exploitation of some these vulnerabilities could result in arbitrary code execution.

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

macOS Big Sur
https://support.apple.com/kb/HT212220

Safari
https://support.apple.com/kb/HT212223

watchOS
https://support.apple.com/kb/HT212222

iOS and iPadOS
https://support.apple.com/kb/HT212221

Apple Security Updates
https://support.apple.com/en-us/HT201222
 
Note to Readers

The Canadian Centre for Cyber Security Cyber securityThe protection of digital information, as well as the integrity of the infrastructure housing and transmitting digital information. More specifically, cyber security includes the body of technologies, processes, practices and response and mitigation measures designed to protect networks, computers, programs and data from attack, damage or unauthorized access so as to ensure confidentiality, integrity and availability. (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 Critical infrastructureProcesses, systems, facilities, technologies, networks, assets, and services essential to the health, safety, security, or economic well-being of Canadians and the effective functioning of government. Critical infrastructure can be stand-alone or interconnected and interdependent within and across provinces, territories, and national borders. Disruptions of critical infrastructure could result in catastrophic loss of life, adverse economic effects, and significant harm to public confidence. , 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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