CVE-2020-10068 : Security Advisory and Response
Learn about CVE-2020-10068, a vulnerability in Zephyr's Bluetooth subsystem causing denial of service. Find mitigation steps and affected versions here.
In the Zephyr project Bluetooth subsystem, certain duplicate and back-to-back packets can cause incorrect behavior, resulting in a denial of service. This vulnerability affects Zephyr versions 2.2.0 and 1.14.0 and later.
Understanding CVE-2020-10068
This CVE involves a vulnerability in the Zephyr project's Bluetooth subsystem that can lead to a denial of service due to incorrect behavior triggered by specific packet sequences.
What is CVE-2020-10068?
The vulnerability in the Zephyr project's Bluetooth subsystem allows attackers to exploit certain packet sequences, resulting in a denial of service.
The Impact of CVE-2020-10068
The vulnerability can be exploited to cause a denial of service, impacting the availability of affected systems.
Technical Details of CVE-2020-10068
This section provides technical details about the vulnerability.
Vulnerability Description
Certain duplicate and back-to-back packets in the Zephyr project Bluetooth subsystem can lead to incorrect behavior, causing a denial of service.
Affected Systems and Versions
- Affected Product: Zephyr
- Vendor: Zephyrproject-rtos
- Vulnerable Versions: 2.2.0 and later, 1.14.0 and later
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Local
- Availability Impact: High
- Base Score: 5.1 (Medium)
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
Mitigation and Prevention
To address CVE-2020-10068, follow these mitigation strategies:
Immediate Steps to Take
- Apply patches provided by Zephyrproject-rtos.
- Monitor and restrict Bluetooth traffic to prevent malicious packet sequences.
Long-Term Security Practices
- Regularly update Zephyr software to the latest versions.
- Implement network segmentation to isolate Bluetooth subsystems.
Patching and Updates
- Stay informed about security updates from Zephyrproject-rtos.