CVE-2021-30516 Explained : Impact and Mitigation

A heap buffer overflow vulnerability was found in Google Chrome prior to version 90.0.4430.212. This vulnerability could allow a remote attacker to exploit heap corruption via a specially crafted HTML page.

Understanding CVE-2021-30516

This section delves into the specifics of the CVE-2021-30516 vulnerability.

What is CVE-2021-30516?

CVE-2021-30516 is a heap buffer overflow vulnerability discovered in the History component of Google Chrome before version 90.0.4430.212. This flaw could be exploited by a remote attacker who has compromised the renderer process.

The Impact of CVE-2021-30516

An attacker could potentially exploit this vulnerability to trigger heap corruption, leading to a denial of service condition or the execution of arbitrary code on the target system.

Technical Details of CVE-2021-30516

In this section, we explore the technical aspects of CVE-2021-30516.

Vulnerability Description

The vulnerability stems from a heap buffer overflow issue in the History functionality of Google Chrome, allowing an attacker to manipulate memory and potentially execute malicious actions.

Affected Systems and Versions

Google Chrome versions prior to 90.0.4430.212 are affected by this vulnerability.

Exploitation Mechanism

By coercing a user into visiting a specially crafted HTML page, an attacker could trigger the heap buffer overflow, potentially gaining control over the affected system.

Mitigation and Prevention

To safeguard systems from CVE-2021-30516, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

Users are advised to update Google Chrome to version 90.0.4430.212 or later to mitigate the risk of exploitation stemming from CVE-2021-30516.

Long-Term Security Practices

Implementing robust security protocols, conducting regular security audits, and staying informed about software updates are essential for maintaining a secure environment.

Patching and Updates

Regularly applying security patches and updates provided by Google Chrome is imperative to address known vulnerabilities and enhance system security.