CVE-2021-30550 : What You Need to Know

Use after free in Accessibility in Google Chrome prior to 91.0.4472.101 allowed an attacker to potentially exploit heap corruption via a crafted HTML page.

Understanding CVE-2021-30550

This CVE describes a vulnerability in Google Chrome that could be exploited by convincing a user to install a malicious extension.

What is CVE-2021-30550?

The CVE-2021-30550 vulnerability involves a use after free issue in Accessibility in Google Chrome versions prior to 91.0.4472.101, allowing attackers to exploit heap corruption.

The Impact of CVE-2021-30550

If exploited, this vulnerability could lead to heap corruption, potentially compromising the security and integrity of the affected system.

Technical Details of CVE-2021-30550

This section provides specific technical details related to CVE-2021-30550.

Vulnerability Description

The vulnerability in Accessibility in Google Chrome allowed attackers to exploit heap corruption through a specially crafted HTML page.

Affected Systems and Versions

Google Chrome versions prior to 91.0.4472.101 are affected by this vulnerability.

Exploitation Mechanism

Attackers could exploit this vulnerability by convincing a user to install a malicious extension, leading to potential heap corruption.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-30550, users and organizations can take the following steps:

Immediate Steps to Take

Update Google Chrome to version 91.0.4472.101 or later to patch the vulnerability.
Avoid installing extensions from untrusted sources.

Long-Term Security Practices

Regularly update software to the latest versions to address known security vulnerabilities.
Educate users about safe browsing practices to prevent unauthorized installations.

Patching and Updates

Stay informed about security updates for Google Chrome and promptly apply patches to ensure protection against potential vulnerabilities.