Number: AV19-190
Date: 6 September 2019
On 6 September 2019 Exim released a critical security update to address a vulnerability which may allow a local or remote actor to execute arbitrary code with root privileges. All versions up to and including 4.92.1 are vulnerable if the Exim server accepts TLS connections.
The Cyber Centre encourages users and administrators to review the Exim Security Advisory webpage and apply the necessary updates:
https://www.exim.org/static/doc/security/CVE-2019-15846.txt
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.