Microsoft security advisory – April 2020 monthly rollup

Number: AV20-104
Date: 15 April 2020

On 14 April 2020 Microsoft released security updates to address multiple vulnerabilities affecting some of its products. This rollup provides fixes for 19 critical vulnerabilities.Of note are a pair of previously reported critical remote code execution vulnerabilities found in the Adobe Type Manager Library component of Microsoft Windows operating systems. These vulnerabilities, tracked as CVE-2020-0938 and CVE-2020-1020, have been patched as part of this rollup.

Also of note is a critical remote code execution vulnerability VulnerabilityA flaw or weakness in the design or implementation of an information system or its environment that could be exploited to adversely affect an organization's assets or operations. , tracked as CVE-2020-0968, which exists in the way that the scripting engine handles objects in memory in Internet Explorer. Successful exploitation could allow an actor to take control of an affected system.

The Cyber Centre encourages users and administrators to review the Microsoft April 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-Apr 

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.