Number: AV20-355
Date: 25 September 2020
On 24 September 2020 Apple released security updates to address vulnerabilities affecting the following products:
- iCloud for Windows
- macOS Catalina, macOS High Sierra and macOS Mojave
The exploitation of these vulnerabilities could result in information disclosure, unauthorized file access, unexpected application termination, cross site scripting and arbitrary code execution.
The Cyber Centre encourages users and administrators to review the following web links and apply the necessary updates.
iCloud for Windows
https://support.apple.com/en-us/HT211847
https://support.apple.com/en-us/HT211846
macOS Catalina, macOS High Sierra and macOS Mojave
https://support.apple.com/en-us/HT211849
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.