CVE-2020-26963 : Security Advisory and Response

This CVE-2020-26963 article provides insights into a vulnerability affecting Firefox versions prior to 83, allowing repeated calls to history and location interfaces to potentially hang the browser.

Understanding CVE-2020-26963

This section delves into the details of the CVE-2020-26963 vulnerability.

What is CVE-2020-26963?

CVE-2020-26963 is a security vulnerability in Firefox versions below 83 that could be exploited by repeated calls to history and location interfaces, potentially causing the browser to hang.

The Impact of CVE-2020-26963

The vulnerability could lead to a denial of service (DoS) scenario where an attacker could hang the browser by making repeated calls to specific interfaces.

Technical Details of CVE-2020-26963

Exploring the technical aspects of the CVE-2020-26963 vulnerability.

Vulnerability Description

The flaw allowed malicious actors to exploit history and location interfaces, causing the browser to hang. Mozilla addressed this by implementing rate-limiting on these API calls.

Affected Systems and Versions

Product: Firefox
Vendor: Mozilla
Affected Versions: < 83

Exploitation Mechanism

Attackers could exploit the vulnerability by making repeated calls to the history and location interfaces, triggering a browser hang.

Mitigation and Prevention

Understanding how to mitigate and prevent the CVE-2020-26963 vulnerability.

Immediate Steps to Take

Update Firefox to version 83 or above to mitigate the vulnerability.
Avoid clicking on suspicious links or visiting untrusted websites.

Long-Term Security Practices

Regularly update browsers and software to the latest versions.
Implement security best practices to prevent DoS attacks.

Patching and Updates

Ensure that all software, including browsers, is regularly updated to the latest versions to patch known vulnerabilities.