CVE-2019-14237 : Vulnerability Insights and Analysis

Flash Access Controls (FAC) on NXP Kinetis devices can be bypassed, allowing unauthorized access to software IP protection features.

Understanding CVE-2019-14237

Flash Access Controls (FAC) vulnerability on NXP Kinetis devices.

What is CVE-2019-14237?

FAC security measures on NXP Kinetis KV1x, KV3x, and K8x devices can be circumvented by monitoring CPU registers and code execution outcomes.
This allows unauthorized access to the software's intellectual property protection feature.

The Impact of CVE-2019-14237

Unauthorized parties can bypass execute-only privileges, compromising software IP protection.

Technical Details of CVE-2019-14237

Flash Access Controls vulnerability on NXP Kinetis devices.

Vulnerability Description

FAC security measures can be defeated by observing CPU registers and code/instruction execution effects.

Affected Systems and Versions

NXP Kinetis KV1x, KV3x, and K8x devices.

Exploitation Mechanism

Monitoring CPU registers and code execution outcomes.

Mitigation and Prevention

Steps to address and prevent CVE-2019-14237.

Immediate Steps to Take

Implement additional access controls and monitoring mechanisms.
Regularly update firmware and security patches.

Long-Term Security Practices

Conduct regular security audits and penetration testing.
Educate users on secure coding practices and IP protection.

Patching and Updates

Apply firmware updates and patches provided by NXP to address the FAC vulnerability.