CVE-2019-5998 : Security Advisory and Response

A vulnerability known as buffer overflow has been identified in the Picture Transfer Protocol (PTP) of various models of Canon EOS series digital cameras and PowerShot cameras.

Understanding CVE-2019-5998

What is CVE-2019-5998?

The CVE-2019-5998 vulnerability is a buffer overflow issue in the Picture Transfer Protocol (PTP) of Canon EOS series digital cameras and PowerShot cameras, allowing attackers on the same network segment to render the affected product unresponsive or execute arbitrary code.

The Impact of CVE-2019-5998

This vulnerability poses a significant risk as it enables attackers to disrupt the functionality of the affected cameras or potentially take control of them remotely.

Technical Details of CVE-2019-5998

Vulnerability Description

The buffer overflow in PTP affects a wide range of Canon EOS series digital cameras and PowerShot cameras, potentially leading to unresponsiveness or unauthorized code execution.

Affected Systems and Versions

EOS series digital cameras (e.g., EOS-1D X, EOS 5D MARK IV) with specific firmware versions
PowerShot SX740 HS, PowerShot SX70 HS, and PowerShot G5Xmark II

Exploitation Mechanism

Attackers exploit the vulnerability by using the "notifybtstatus" command on the same network segment to disrupt or take control of the affected cameras.

Mitigation and Prevention

Immediate Steps to Take

Disable network connectivity on the affected cameras if not required
Implement network segmentation to isolate vulnerable devices
Monitor network traffic for any suspicious activity

Long-Term Security Practices

Regularly update camera firmware to the latest versions provided by Canon
Follow best practices for network security and access control

Patching and Updates

Canon has released firmware updates addressing the CVE-2019-5998 vulnerability. Users should promptly apply these patches to secure their devices.