CVE-2019-17520 : What You Need to Know
Learn about CVE-2019-17520, a vulnerability in Texas Instruments SDK allowing attackers to crash systems within radio range. Find mitigation steps and prevention measures here.
Texas Instruments SDK version up to 3.30.00.20 for CC2640R2 devices has a vulnerability in the Bluetooth Low Energy implementation, allowing attackers to crash the system within radio range.
Understanding CVE-2019-17520
The vulnerability in the Bluetooth Low Energy implementation on Texas Instruments SDK for CC2640R2 devices can lead to a denial of service by sending crafted packets.
What is CVE-2019-17520?
The Texas Instruments SDK version up to 3.30.00.20 for CC2640R2 devices has a vulnerability in the Bluetooth Low Energy implementation. Attackers within radio range can crash the system by sending carefully crafted packets.
The Impact of CVE-2019-17520
This vulnerability allows attackers within radio range to crash the system by exploiting the inadequate restriction of the SM Public Key packet during reception.
Technical Details of CVE-2019-17520
The technical details of the CVE-2019-17520 vulnerability are as follows:
Vulnerability Description
The Bluetooth Low Energy implementation on Texas Instruments SDK through version 3.30.00.20 for CC2640R2 devices does not properly restrict the SM Public Key packet on reception, enabling attackers in radio range to cause a denial of service (crash) via crafted packets.
Affected Systems and Versions
- Product: Texas Instruments SDK
- Vendor: Texas Instruments
- Versions affected: Up to 3.30.00.20
Exploitation Mechanism
Attackers within radio range can exploit this vulnerability by sending carefully crafted packets that the system fails to adequately restrict, leading to a crash.
Mitigation and Prevention
To mitigate the CVE-2019-17520 vulnerability, consider the following steps:
Immediate Steps to Take
- Implement network segmentation to limit exposure
- Apply the principle of least privilege for system access
- Monitor network traffic for any suspicious activities
Long-Term Security Practices
- Regularly update firmware and software to patch known vulnerabilities
- Conduct security training for employees to raise awareness of potential threats
Patching and Updates
- Apply the latest patches and updates provided by Texas Instruments to address the vulnerability