CVE-2019-14438 : Security Advisory and Response

A heap-based buffer over-read vulnerability in the xiph_PackHeaders() function within the VideoLAN VLC media player version 3.0.7.1 allows remote attackers to exploit the system by manipulating a specially crafted .ogg file.

Understanding CVE-2019-14438

This CVE entry describes a specific vulnerability in the VideoLAN VLC media player version 3.0.7.1.

What is CVE-2019-14438?

The vulnerability lies in the xiph_PackHeaders() function in modules/demux/xiph.h within the VLC media player, allowing remote attackers to trigger a heap-based buffer over-read through a malicious .ogg file.

The Impact of CVE-2019-14438

The exploitation of this vulnerability can lead to a heap-based buffer over-read, potentially enabling attackers to execute arbitrary code or cause a denial of service (DoS) condition.

Technical Details of CVE-2019-14438

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability is a heap-based buffer over-read in the xiph_PackHeaders() function in modules/demux/xiph.h in VideoLAN VLC media player 3.0.7.1.

Affected Systems and Versions

Product: VideoLAN VLC media player
Version: 3.0.7.1

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating a specially crafted .ogg file to trigger the heap-based buffer over-read.

Mitigation and Prevention

Protecting systems from CVE-2019-14438 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update VLC media player to a non-vulnerable version.
Avoid opening or accessing suspicious .ogg files.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement network segmentation and access controls.
Conduct regular security assessments and penetration testing.

Patching and Updates

Ensure that the VLC media player is regularly updated to the latest version to mitigate the vulnerability.