Number: AV20-005
Date: 09 January 2020
On 8 January 2020 Mozilla released Firefox 72.0.1 and Firefox ESR 68.4.1 to address a critical type confusion vulnerability which may allow for out-of-bounds memory access. This access may lead to arbitrary code execution.
Mozilla reports that exploitation has been detected for this vulnerability.
The Cyber Centre encourages users and administrators to review the Mozilla Foundation Security Advisories webpage and apply the necessary updates:
https://www.mozilla.org/en-US/security/advisories/mfsa2020-03/
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.