Number: AV21-495
Date: 5 October 2021
Updated: 8 October 2021
On 4 October 2021 Apache published a Security Bulletin to address vulnerabilities in the following product:
- Apache HTTP Server - version 2.4.49
UPDATE 1
On 7 October 2021 Apache released HTTP Server version 2.4.51 to address deficient remediation of CVE-2021-41773 in the following product:
- Apache HTTP Server – version 2.4.50
END OF UPDATE 1
Exploitation of some of these vulnerabilities may result in information disclosure.
Apache has stated that CVE-2021-41773 is known to be exploited in the wild.
The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.
Apache Security Bulletin
https://httpd.apache.org/security/vulnerabilities_24.html
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.