CVE-2017-14222 : Vulnerability Insights and Analysis

FFmpeg version 3.3.3 contains a vulnerability in the read_tfra() function within the libavformat/mov.c file, potentially leading to a Denial of Service (DoS) attack due to excessive CPU and memory usage. The absence of an End of File (EOF) verification when processing a manipulated MOV file is the root cause of this issue.

Understanding CVE-2017-14222

This CVE entry highlights a vulnerability in FFmpeg version 3.3.3 that could be exploited for a DoS attack.

What is CVE-2017-14222?

CVE-2017-14222 is a vulnerability in FFmpeg version 3.3.3 that allows for a DoS attack by consuming excessive CPU and memory resources due to a lack of EOF verification in the read_tfra() function.

The Impact of CVE-2017-14222

The vulnerability could be exploited to cause a DoS attack, potentially disrupting services and causing system instability.

Technical Details of CVE-2017-14222

FFmpeg version 3.3.3 is affected by a specific vulnerability within the read_tfra() function.

Vulnerability Description

The vulnerability arises from the absence of EOF verification when processing a manipulated MOV file, leading to excessive CPU and memory consumption.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: n/a

Exploitation Mechanism

Crafted MOV files with a large "item_count" field in the header but insufficient backing data can trigger the vulnerability, causing CPU and memory resources to be consumed excessively.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-14222.

Immediate Steps to Take

Update FFmpeg to a patched version that addresses the vulnerability.
Avoid opening untrusted MOV files to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement network security measures to detect and prevent DoS attacks.

Patching and Updates

Stay informed about security advisories and apply patches promptly to secure systems against potential threats.