CVE-2018-14395 : What You Need to Know

FFmpeg versions 3.2 and 4.0.2 are susceptible to an application crash triggered by a divide-by-zero error in the libavformat/movenc.c file when converting a user-crafted audio file to the MOV audio format.

Understanding CVE-2018-14395

An overview of the vulnerability and its impact.

What is CVE-2018-14395?

CVE-2018-14395 is a vulnerability in FFmpeg versions 3.2 and 4.0.2 that allows attackers to cause an application crash by exploiting a divide-by-zero error during the conversion of audio files to the MOV audio format.

The Impact of CVE-2018-14395

The vulnerability can lead to a denial of service (DoS) condition due to the application crash triggered by the divide-by-zero error.

Technical Details of CVE-2018-14395

Insight into the technical aspects of the vulnerability.

Vulnerability Description

The issue resides in the libavformat/movenc.c file of FFmpeg 3.2 and 4.0.2, enabling attackers to exploit a divide-by-zero error when processing specially crafted audio files.

Affected Systems and Versions

FFmpeg versions 3.2 and 4.0.2

Exploitation Mechanism

Attackers can exploit the vulnerability by providing a malicious audio file for conversion to the MOV audio format, triggering the divide-by-zero error and causing an application crash.

Mitigation and Prevention

Preventive measures and actions to mitigate the impact of CVE-2018-14395.

Immediate Steps to Take

Update FFmpeg to a patched version that addresses the divide-by-zero error.
Avoid converting untrusted or suspicious audio files using vulnerable FFmpeg versions.

Long-Term Security Practices

Regularly monitor for FFmpeg updates and apply patches promptly.
Implement file format validation checks to prevent the processing of malicious audio files.

Patching and Updates

Apply the latest patches provided by FFmpeg to fix the divide-by-zero error and prevent application crashes.