CVE-2017-5043 : Security Advisory and Response

A vulnerability was discovered in Google Chrome versions earlier than 57.0.2987.98 for Linux, Windows, and Mac, allowing remote attackers to gain unauthorized access.

Understanding CVE-2017-5043

This CVE relates to a use after free bug in Chrome Apps, specifically in GuestView, which could be exploited by a malicious Chrome extension.

What is CVE-2017-5043?

The vulnerability in Google Chrome versions prior to 57.0.2987.98 for Linux, Windows, and Mac allowed remote attackers to exploit a use after free bug in Chrome Apps, potentially leading to unauthorized access.

The Impact of CVE-2017-5043

The vulnerability could be exploited remotely, enabling attackers to read out of bounds memory by utilizing a malicious Chrome extension.

Technical Details of CVE-2017-5043

This section provides more technical insights into the CVE.

Vulnerability Description

The use after free bug in Chrome Apps, specifically in GuestView, allowed remote attackers to perform an out of bounds memory read via a crafted Chrome extension.

Affected Systems and Versions

Product: Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac
Versions: Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac

Exploitation Mechanism

The vulnerability could be exploited remotely by utilizing a malicious Chrome extension.

Mitigation and Prevention

To address CVE-2017-5043, consider the following steps:

Immediate Steps to Take

Update Google Chrome to version 57.0.2987.98 or later.
Avoid installing untrusted Chrome extensions.

Long-Term Security Practices

Regularly update Chrome and all installed extensions.
Implement security best practices to prevent unauthorized access.

Patching and Updates

Ensure timely installation of security patches and updates for Google Chrome to mitigate the risk of exploitation.