CVE-2023-6704 : Exploit Details and Defense Strategies

This CVE record pertains to a vulnerability in Google Chrome prior to version 120.0.6099.109 that could allow a remote attacker to potentially exploit heap corruption via a crafted image file.

Understanding CVE-2023-6704

This section delves into the specifics of CVE-2023-6704 and its implications.

What is CVE-2023-6704?

The CVE-2023-6704 vulnerability involves a "Use after free" issue in libavif in Google Chrome. This vulnerability allows a remote attacker to exploit heap corruption by using a specially crafted image file. The severity of this vulnerability is classified as "High" according to Chromium security assessments.

The Impact of CVE-2023-6704

The impact of CVE-2023-6704 is significant as it provides a potential gateway for remote attackers to manipulate heap memory, leading to possible system compromise and unauthorized access.

Technical Details of CVE-2023-6704

This section provides a detailed overview of the technical aspects of CVE-2023-6704.

Vulnerability Description

The vulnerability arises from a "Use after free" issue in libavif in Google Chrome, where incorrect handling of memory can be exploited by a remote attacker through a specially crafted image file.

Affected Systems and Versions

Google Chrome versions prior to 120.0.6099.109 are affected by this vulnerability, specifically those using the libavif component.

Exploitation Mechanism

The vulnerability can be exploited remotely by sending a victim a malicious image file that triggers the "Use after free" issue in the libavif component of Google Chrome.

Mitigation and Prevention

In order to protect systems from the CVE-2023-6704 vulnerability, certain mitigating measures can be implemented.

Immediate Steps to Take

Users are advised to update their Google Chrome browser to version 120.0.6099.109 or higher to mitigate the risk of exploitation.
Avoid opening or downloading suspicious image files from unknown or untrusted sources.

Long-Term Security Practices

Regularly update software and applications to ensure that security patches are applied promptly.
Employ reliable security software that can detect and prevent exploitation attempts.

Patching and Updates

Google has released an update addressing the CVE-2023-6704 vulnerability. Users are urged to apply the latest patches and updates provided by Google Chrome to safeguard their systems from potential security risks.