Number: AV20-032
Date: 12 February 2020
On 11 February 2020 Microsoft released security updates to address multiple vulnerabilities affecting some of its products. This rollup provides fixes for 12 critical remote code execution vulnerabilities.
Of note is a previously reported critical remote code execution vulnerability, tracked as CVE-2020-0674, which exists in Internet Explorer 9, 10 and 11. Exploitation of this vulnerability may allow an actor to execute arbitrary code in the context of the current user. Microsoft recommends removal of the previously provided workaround (if applied) before installation of the current update. Review Microsoft Advisory ADV200001 for more information.
The Cyber Centre encourages users and administrators to review the Microsoft February 2020 Security Updates webpage and apply the necessary updates:
https://portal.msrc.microsoft.com/en-us/security-guidance
Release Notes:
https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2020-Feb
ADV200001 – Microsoft Guidance on CVE-2020-0674:
https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV200001
CCCS AL20-004:
https://cyber.gc.ca/en/alerts/active-exploitation-internet-explorer-vulnerability
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.