CVE-2021-4099 : Exploit Details and Defense Strategies

Google Chrome prior to version 96.0.4664.110 is affected by a use-after-free vulnerability in Swiftshader, allowing a remote attacker to potentially exploit heap corruption through a malicious HTML page.

Understanding CVE-2021-4099

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-4099.

What is CVE-2021-4099?

The CVE-2021-4099 vulnerability involves a use-after-free issue in Swiftshader in Google Chrome versions before 96.0.4664.110. It enables a remote attacker to exploit heap corruption using a specially crafted HTML page.

The Impact of CVE-2021-4099

The vulnerability allows a remote attacker to trigger heap corruption, leading to potential security breaches and unauthorized access to sensitive information on affected systems.

Technical Details of CVE-2021-4099

Explore the specifics of the vulnerability in terms of description, affected systems, versions, and exploitation mechanisms.

Vulnerability Description

A use-after-free flaw in Swiftshader within Google Chrome versions prior to 96.0.4664.110 can be exploited by an attacker through a crafted HTML page, potentially resulting in heap corruption.

Affected Systems and Versions

Google Chrome versions before 96.0.4664.110 are impacted by this vulnerability, putting users of these versions at risk of exploitation.

Exploitation Mechanism

By luring a user to visit a malicious website or open a specially designed HTML page, an attacker could execute arbitrary code on the target system, compromising its security.

Mitigation and Prevention

Learn how to protect your systems from CVE-2021-4099 and prevent potential security threats.

Immediate Steps to Take

Users are advised to update Google Chrome to version 96.0.4664.110 or later to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust security measures, such as regular software updates, security patches, and user awareness training, can help prevent similar vulnerabilities in the future.

Patching and Updates

Stay informed about security updates for Google Chrome and promptly apply patches to ensure your systems are protected against known vulnerabilities.