CVE-2021-37985 : What You Need to Know

A detailed overview of CVE-2021-37985, a vulnerability in Google Chrome prior to version 95.0.4638.54 that could allow remote attackers to exploit heap corruption through a crafted HTML page.

Understanding CVE-2021-37985

This section provides insights into the nature and impact of the vulnerability.

What is CVE-2021-37985?

The CVE-2021-37985 vulnerability, also known as a 'Use after free' in V8 in Google Chrome before 95.0.4638.54, enables a remote attacker who persuades a user to connect to a debugger to potentially exploit heap corruption via a specially created HTML page.

The Impact of CVE-2021-37985

The impact of this vulnerability is significant as it allows a remote attacker to execute malicious code on the victim's system, potentially leading to a complete compromise of the target machine.

Technical Details of CVE-2021-37985

Explore the technical aspects of the CVE-2021-37985 vulnerability.

Vulnerability Description

The vulnerability arises from a use-after-free issue in the V8 engine of Google Chrome, providing attackers with the ability to corrupt the heap memory via a specifically crafted HTML page.

Affected Systems and Versions

Google Chrome versions prior to 95.0.4638.54 are susceptible to this vulnerability, making users of these earlier versions at risk of exploitation.

Exploitation Mechanism

By convincing a user to allow connection to a debugger, a remote attacker can leverage this vulnerability to carry out an attack, potentially leading to heap corruption and execution of arbitrary code.

Mitigation and Prevention

Discover the necessary steps to mitigate and prevent exploitation of CVE-2021-37985.

Immediate Steps to Take

Users are advised to update Google Chrome to version 95.0.4638.54 or higher to mitigate the risk of exploitation. Additionally, exercise caution while interacting with untrusted HTML pages to minimize the attack surface.

Long-Term Security Practices

To enhance security posture in the long run, users should regularly update their software, enable automatic updates, and practice safe browsing habits to reduce exposure to similar vulnerabilities.

Patching and Updates

Google has released a security update addressing the CVE-2021-37985 vulnerability in Chrome version 95.0.4638.54. It is recommended to apply this patch promptly to safeguard against potential exploitation.