CVE-2019-17060 : What You Need to Know
Discover the impact of CVE-2019-17060 on NXP KW41Z with the MCUXpresso SDK. Learn about the vulnerability in the Bluetooth Low Energy stack, its exploitation risks, and mitigation steps.
NXP KW41Z, based on the MCUXpresso SDK with Bluetooth Low Energy Driver 2.2.1 and older versions, has a vulnerability in its Bluetooth Low Energy (BLE) stack that allows attackers to exploit the BLE Link Layer header.
Understanding CVE-2019-17060
This CVE involves a flaw in the implementation of the Bluetooth Low Energy (BLE) stack in NXP KW41Z, potentially leading to various security issues.
What is CVE-2019-17060?
The vulnerability in CVE-2019-17060 allows attackers within radio range to create deadlocks, induce abnormal behavior in the BLE state machine, or trigger a buffer overflow by sending a specifically crafted BLE Link Layer frame. The flaw arises from inadequate restrictions on the BLE Link Layer header.
The Impact of CVE-2019-17060
The vulnerability could result in severe consequences, including system crashes, unauthorized access, or the execution of arbitrary code by malicious actors exploiting the BLE Link Layer header.
Technical Details of CVE-2019-17060
The technical aspects of the CVE-2019-17060 vulnerability provide insights into its nature and potential risks.
Vulnerability Description
The flaw in the BLE stack implementation on NXP KW41Z allows attackers to exploit the BLE Link Layer header, executing specific memory contents upon receiving a packet with a Link Layer ID (LLID) equal to zero.
Affected Systems and Versions
- Product: NXP KW41Z
- Vendor: N/A
- Versions: MCUXpresso SDK with Bluetooth Low Energy Driver 2.2.1 and older
Exploitation Mechanism
Attackers within radio range can exploit the vulnerability by sending a crafted BLE Link Layer frame, causing deadlocks, abnormal BLE state machine behavior, or triggering a buffer overflow.
Mitigation and Prevention
Addressing CVE-2019-17060 requires immediate actions and long-term security measures to safeguard systems.
Immediate Steps to Take
- Apply patches or updates provided by NXP to mitigate the vulnerability.
- Monitor BLE communications for any suspicious activities.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update firmware and software to ensure the latest security patches are in place.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
NXP may release patches or updates to address the vulnerability in the BLE stack implementation on NXP KW41Z.