CVE-2018-14394 : Exploit Details and Defense Strategies

FFmpeg before version 4.0.2 is vulnerable to a divide-by-zero error in libavformat/movenc.c, allowing attackers to trigger a denial of service attack by exploiting a specially crafted Waveform audio file.

Understanding CVE-2018-14394

This CVE identifies a critical vulnerability in FFmpeg that can lead to application crashes.

What is CVE-2018-14394?

The CVE-2018-14394 vulnerability in FFmpeg versions prior to 4.0.2 allows attackers to execute a denial of service attack by exploiting a divide-by-zero error in the file libavformat/movenc.c. The vulnerability can be triggered by a specifically crafted Waveform audio file.

The Impact of CVE-2018-14394

The presence of this vulnerability enables attackers to cause a denial of service, leading to application crashes.

Technical Details of CVE-2018-14394

FFmpeg versions before 4.0.2 are susceptible to this vulnerability.

Vulnerability Description

The vulnerability in libavformat/movenc.c allows attackers to cause a denial of service through a divide-by-zero error triggered by a crafted Waveform audio file.

Affected Systems and Versions

Product: FFmpeg
Vendor: N/A
Versions affected: All versions prior to 4.0.2

Exploitation Mechanism

Attackers can exploit this vulnerability by using a specifically crafted Waveform audio file to trigger a divide-by-zero error, leading to a denial of service attack.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2018-14394.

Immediate Steps to Take

Update FFmpeg to version 4.0.2 or later to mitigate the vulnerability.
Avoid opening untrusted Waveform audio files.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement robust security measures to prevent and detect denial of service attacks.

Patching and Updates

Apply security patches promptly to ensure protection against known vulnerabilities.