CVE-2020-13428 : Security Advisory and Response

A heap-based buffer overflow in the hxxx_AnnexB_to_xVC function in VideoLAN VLC media player before 3.0.11 for macOS/iOS allows remote attackers to cause a denial of service or execute arbitrary code via a crafted H.264 Annex-B video file.

Understanding CVE-2020-13428

This CVE involves a critical vulnerability in the VLC media player that could lead to a denial of service or arbitrary code execution.

What is CVE-2020-13428?

CVE-2020-13428 is a heap-based buffer overflow vulnerability in the hxxx_AnnexB_to_xVC function in VideoLAN VLC media player before version 3.0.11 for macOS/iOS.

The Impact of CVE-2020-13428

The vulnerability allows remote attackers to exploit the system by causing a denial of service (application crash) or executing arbitrary code through a specially crafted H.264 Annex-B video file.

Technical Details of CVE-2020-13428

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

Vulnerability Description

The heap-based buffer overflow occurs in the hxxx_AnnexB_to_xVC function in modules/packetizer/hxxx_nal.c in VideoLAN VLC media player.

Affected Systems and Versions

Affected versions: VideoLAN VLC media player before 3.0.11 for macOS/iOS

Exploitation Mechanism

The vulnerability can be exploited by remote attackers through a crafted H.264 Annex-B video file, such as .avi.

Mitigation and Prevention

Protecting systems from CVE-2020-13428 requires immediate action and long-term security practices.

Immediate Steps to Take

Update VLC media player to version 3.0.11 or later
Avoid opening or playing untrusted video files

Long-Term Security Practices

Regularly update software and applications
Implement network security measures to prevent remote attacks

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.