CVE-2017-5111 Explained : Impact and Mitigation

Google Chrome prior to version 61.0.3163.79 for Linux, Windows, and Mac is affected by a 'use after free' vulnerability in PDFium.

Understanding CVE-2017-5111

A vulnerability in Google Chrome prior to version 61.0.3163.79 for Linux, Windows, and Mac allows remote attackers to exploit memory corruption through a crafted PDF file.

What is CVE-2017-5111?

Prior to version 61.0.3163.79 of Google Chrome for Linux, Windows, and Mac, a vulnerability known as 'use after free' in PDFium could be exploited by remote attackers using a specially crafted PDF file.

The Impact of CVE-2017-5111

This vulnerability could allow remote attackers to manipulate memory and cause memory corruption on affected systems.

Technical Details of CVE-2017-5111

Google Chrome prior to version 61.0.3163.79 for Linux, Windows, and Mac is susceptible to a 'use after free' vulnerability in PDFium.

Vulnerability Description

A 'use after free' vulnerability in PDFium in Google Chrome prior to version 61.0.3163.79 for Linux, Windows, and Mac could enable a remote attacker to potentially exploit memory corruption via a crafted PDF file.

Affected Systems and Versions

Product: Google Chrome prior to 61.0.3163.79 for Linux, Windows, and Mac

Exploitation Mechanism

Remote attackers can exploit this vulnerability using a specifically crafted PDF file to manipulate memory and cause memory corruption.

Mitigation and Prevention

Immediate Steps to Take:

Update Google Chrome to version 61.0.3163.79 or later.
Avoid opening PDF files from untrusted or unknown sources. Long-Term Security Practices:
Regularly update software and applications to the latest versions.
Implement network security measures to detect and prevent malicious PDF files.
Educate users on safe browsing practices and the risks associated with opening unknown files.
Consider using additional security tools such as antivirus software.

Patching and Updates

Ensure that Google Chrome is regularly updated to the latest version to mitigate the 'use after free' vulnerability in PDFium.