CVE-2018-6120 : What You Need to Know

Google Chrome prior to version 66.0.3359.170 had a vulnerability in PDFium that could allow an attacker to execute unauthorized code remotely. The issue was caused by an integer overflow in a crafted PDF file.

Understanding CVE-2018-6120

This CVE details a critical vulnerability in Google Chrome that could lead to remote code execution.

What is CVE-2018-6120?

An integer overflow in PDFium in Google Chrome before version 66.0.3359.170 allowed attackers to execute arbitrary code remotely using a specially crafted PDF file.

The Impact of CVE-2018-6120

The vulnerability could enable attackers to gain control over the heap and execute unauthorized code remotely, posing a significant security risk.

Technical Details of CVE-2018-6120

This section provides in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability stemmed from an integer overflow in PDFium within Google Chrome, allowing attackers to control the heap and execute unauthorized code remotely.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 66.0.3359.170

Exploitation Mechanism

Attackers could exploit this vulnerability by using a carefully crafted PDF file to trigger the integer overflow and execute malicious code remotely.

Mitigation and Prevention

Protecting systems from CVE-2018-6120 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Google Chrome to version 66.0.3359.170 or newer to mitigate the vulnerability.
Avoid opening PDF files from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement sandboxing and isolation techniques to limit the impact of potential exploits.

Patching and Updates

Google has addressed this vulnerability in version 66.0.3359.170 and later releases.