CVE-2017-15672 : Vulnerability Insights and Analysis

FFmpeg versions 2.4 and 3.3.4, as well as potentially earlier versions, contain a vulnerability that can be exploited by remote attackers through a specially crafted MP4 file, leading to an out-of-bounds read.

Understanding CVE-2017-15672

FFmpeg is susceptible to a remote attack that can result in unspecified consequences due to a flaw in the read_header function.

What is CVE-2017-15672?

The vulnerability in FFmpeg versions allows remote attackers to trigger an out-of-bounds read by using a maliciously crafted MP4 file.

The Impact of CVE-2017-15672

Exploitation of this vulnerability can lead to unspecified consequences, potentially enabling attackers to cause harm by executing arbitrary code or crashing the application.

Technical Details of CVE-2017-15672

FFmpeg's vulnerability lies in the read_header function in libavcodec/ffv1dec.c.

Vulnerability Description

The flaw in FFmpeg versions 2.4 and 3.3.4, and potentially earlier versions, allows remote attackers to exploit the read_header function, resulting in an out-of-bounds read.

Affected Systems and Versions

FFmpeg versions 2.4 and 3.3.4
Potentially earlier versions

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious MP4 file that triggers the out-of-bounds read, potentially leading to arbitrary code execution or application crashes.

Mitigation and Prevention

To address CVE-2017-15672, consider the following steps:

Immediate Steps to Take

Update FFmpeg to the latest version to mitigate the vulnerability.
Avoid opening or processing untrusted MP4 files.

Long-Term Security Practices

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

Patching and Updates

Apply security patches provided by FFmpeg promptly to address the vulnerability.