CVE-2019-17519 : Exploit Details and Defense Strategies
Learn about CVE-2019-17519, a Bluetooth Low Energy vulnerability in NXP SDK up to version 2.2.1 for KW41Z devices enabling buffer overflow attacks. Find mitigation steps and affected systems here.
Bluetooth Low Energy vulnerability in NXP SDK up to version 2.2.1 for KW41Z devices allows buffer overflow attacks.
Understanding CVE-2019-17519
Bluetooth Low Energy vulnerability in NXP SDK for KW41Z devices enables buffer overflow attacks through crafted packets.
What is CVE-2019-17519?
Attackers within radio range can exploit a vulnerability in the Bluetooth Low Energy implementation on NXP SDK up to version 2.2.1 for KW41Z devices. This flaw arises due to inadequate restrictions on the Link Layer payload length, enabling the execution of a buffer overflow attack through a specifically crafted packet.
The Impact of CVE-2019-17519
- Attackers within radio range can execute buffer overflow attacks
- Potential for unauthorized access and control of affected devices
Technical Details of CVE-2019-17519
Bluetooth Low Energy vulnerability in NXP SDK for KW41Z devices
Vulnerability Description
The Bluetooth Low Energy implementation on NXP SDK through 2.2.1 for KW41Z devices does not properly restrict the Link Layer payload length, allowing attackers in radio range to cause a buffer overflow via a crafted packet.
Affected Systems and Versions
- NXP SDK up to version 2.2.1 for KW41Z devices
Exploitation Mechanism
- Attackers within radio range exploit inadequate restrictions on the Link Layer payload length
- Buffer overflow attack executed through a specifically crafted packet
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly
- Implement network segmentation to limit exposure
- Monitor network traffic for any suspicious activities
Long-Term Security Practices
- Regularly update firmware and software to the latest versions
- Conduct security assessments and penetration testing
- Educate users on safe Bluetooth usage practices
- Implement strong encryption and authentication mechanisms
- Consider using intrusion detection systems
- Stay informed about security best practices and emerging threats
Patching and Updates
- Check for and apply patches released by NXP for the affected SDK versions