CVE-2017-5051 Explained : Impact and Mitigation

Google Chrome prior to version 57.0.2987.98 for Mac, Windows, and Linux, and 57.0.2987.108 for Android, was affected by an integer overflow vulnerability in FFmpeg. This allowed a remote attacker to execute a memory write beyond the allocated limits by exploiting a specially crafted video file.

Understanding CVE-2017-5051

FFmpeg in Google Chrome versions earlier than 57.0.2987.98 for Mac, Windows, and Linux, as well as versions earlier than 57.0.2987.108 for Android, contained a vulnerability known as integer overflow.

What is CVE-2017-5051?

An integer overflow vulnerability in FFmpeg in Google Chrome versions prior to 57.0.2987.98 for Mac, Windows, and Linux, and 57.0.2987.108 for Android.
The vulnerability allowed a remote attacker to perform a memory write beyond the allocated limits by exploiting a crafted video file.
The issue was related to the ChunkDemuxer component.

The Impact of CVE-2017-5051

A malicious remote attacker could exploit this vulnerability to execute a memory write beyond the allocated limits.
Successful exploitation could lead to arbitrary code execution or a denial of service condition.

Technical Details of CVE-2017-5051

FFmpeg in Google Chrome versions earlier than 57.0.2987.98 for Mac, Windows, and Linux, and versions earlier than 57.0.2987.108 for Android, contained an integer overflow vulnerability.

Vulnerability Description

The vulnerability allowed a remote attacker to perform an out-of-bounds memory write via a crafted video file, related to the ChunkDemuxer.

Affected Systems and Versions

Google Chrome versions prior to 57.0.2987.98 for Mac, Windows, and Linux, and 57.0.2987.108 for Android.

Exploitation Mechanism

Exploitation involved a remote attacker using a specially created video file to trigger the integer overflow vulnerability.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-5051.

Immediate Steps to Take

Update Google Chrome to version 57.0.2987.98 for Mac, Windows, and Linux, and 57.0.2987.108 for Android.
Avoid opening or accessing suspicious video files from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to the latest versions to patch known vulnerabilities.
Implement network security measures to detect and block malicious activities.

Patching and Updates

Google Chrome users should apply the latest security updates provided by the vendor to mitigate the risk of exploitation.