CVE-2021-37967 : Vulnerability Insights and Analysis

Google Chrome versions prior to 94.0.4606.54 are affected by an inappropriate implementation in the Background Fetch API. This vulnerability could allow a remote attacker, who compromised the renderer process, to leak cross-origin data through a specially crafted HTML page.

Understanding CVE-2021-37967

This section will cover the details and impact of CVE-2021-37967.

What is CVE-2021-37967?

The vulnerability in the Background Fetch API of Google Chrome versions before 94.0.4606.54 allows a remote attacker to extract cross-origin data by exploiting a compromised renderer process.

The Impact of CVE-2021-37967

The impact of this vulnerability is significant as it enables attackers to leak sensitive cross-origin data, posing a risk to user privacy and security.

Technical Details of CVE-2021-37967

Let's delve into the technical aspects of the CVE-2021-37967 vulnerability.

Vulnerability Description

The flaw arises from the incorrect implementation within the Background Fetch API, leading to data leakage when triggered by a malicious HTML page.

Affected Systems and Versions

Google Chrome versions earlier than 94.0.4606.54 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

By manipulating the renderer process, an attacker can exploit this vulnerability to expose sensitive cross-origin data.

Mitigation and Prevention

Learn how to safeguard systems and mitigate the risks associated with CVE-2021-37967.

Immediate Steps to Take

Users should update Google Chrome to version 94.0.4606.54 or later to eliminate the vulnerability and protect against potential attacks.

Long-Term Security Practices

Regularly updating web browsers and maintaining strong security practices can help prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security patches and update releases from Google Chrome to ensure a secure browsing experience.