CVE-2019-5866 Explained : Impact and Mitigation

A potential security vulnerability was discovered in versions of Google Chrome prior to 75.0.3770.142. This vulnerability enabled remote attackers to potentially exploit heap corruption through a specifically designed HTML page, by gaining unauthorized access to memory in JavaScript.

Understanding CVE-2019-5866

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

What is CVE-2019-5866?

The CVE-2019-5866 vulnerability in Google Chrome allowed remote attackers to exploit heap corruption through a specially crafted HTML page.

The Impact of CVE-2019-5866

Remote attackers could potentially gain unauthorized access to memory in JavaScript
Exploitation of this vulnerability could lead to heap corruption

Technical Details of CVE-2019-5866

The technical details of the CVE-2019-5866 vulnerability in Google Chrome are as follows:

Vulnerability Description

Out of bounds memory access in JavaScript in Google Chrome prior to 75.0.3770.142 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 75.0.3770.142

Exploitation Mechanism

The vulnerability could be exploited by remote attackers through a specifically designed HTML page to gain unauthorized access to memory in JavaScript.

Mitigation and Prevention

To mitigate the risks associated with CVE-2019-5866, the following steps are recommended:

Immediate Steps to Take

Update Google Chrome to version 75.0.3770.142 or later
Avoid visiting untrusted websites or clicking on suspicious links

Long-Term Security Practices

Regularly update software and applications to the latest versions
Implement strong security measures such as firewalls and antivirus software

Patching and Updates

Google released a stable channel update for desktop to address this vulnerability