CVE-2021-37997 : Vulnerability Insights and Analysis

A detailed analysis of CVE-2021-37997, a vulnerability in Google Chrome that allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Understanding CVE-2021-37997

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-37997.

What is CVE-2021-37997?

CVE-2021-37997 refers to a 'Use after free' vulnerability in Sign-In functionality in Google Chrome versions prior to 95.0.4638.69. It allowed a remote attacker to exploit heap corruption by convincing a user to sign into Chrome via a malicious HTML page.

The Impact of CVE-2021-37997

The vulnerability posed a significant risk as it could potentially lead to remote code execution and arbitrary code execution by an attacker, compromising user data and system integrity.

Technical Details of CVE-2021-37997

This section delves into the vulnerability description, affected systems, and the exploitation mechanism of CVE-2021-37997.

Vulnerability Description

The vulnerability originated from a 'Use after free' flaw in the Sign-In feature of Google Chrome, allowing an attacker to trigger heap corruption on a victim's system.

Affected Systems and Versions

Google Chrome versions prior to 95.0.4638.69 across all platforms were susceptible to this security issue.

Exploitation Mechanism

By luring a user to sign into Chrome using a specially crafted HTML page, an attacker could trigger the vulnerability, potentially leading to heap corruption and further exploitation.

Mitigation and Prevention

This section covers immediate steps to secure your systems, long-term security practices, and the importance of timely patching and updates.

Immediate Steps to Take

Users and organizations are advised to update Google Chrome to version 95.0.4638.69 or later, refrain from clicking on suspicious links, and exercise caution while signing into online accounts.

Long-Term Security Practices

Implement robust security measures such as regular software updates, user awareness training, and employing security software to detect and prevent similar vulnerabilities.

Patching and Updates

Regularly monitor security advisories from Google Chrome, apply security patches promptly, and stay informed about potential security risks to safeguard against future threats.