CVE-2020-10066 Explained : Impact and Mitigation

CVE-2020-10066 addresses an Incorrect Error Handling vulnerability in the Bluetooth HCI core of Zephyr versions v1.14.2 and v2.2.0. This vulnerability could lead to a NULL Pointer Dereference (CWE-476).

Understanding CVE-2020-10066

This CVE entry highlights a security issue in Zephyr's Bluetooth HCI core that could result in a NULL Pointer Dereference.

What is CVE-2020-10066?

The vulnerability involves Incorrect Error Handling in the Bluetooth HCI core of Zephyr versions v1.14.2 and v2.2.0, potentially leading to a NULL Pointer Dereference (CWE-476).

The Impact of CVE-2020-10066

The impact of this vulnerability is rated as LOW severity with a CVSS base score of 2.5. It requires local attack vector and user interaction, affecting availability but not confidentiality or integrity.

Technical Details of CVE-2020-10066

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability stems from Incorrect Error Handling in the Bluetooth HCI core, leading to a NULL Pointer Dereference (CWE-476).

Affected Systems and Versions

Zephyr versions v1.14.2 and v2.2.0

Exploitation Mechanism

The vulnerability can be exploited locally with high attack complexity, requiring user interaction.

Mitigation and Prevention

Protecting systems from CVE-2020-10066 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by Zephyrproject-rtos promptly
Monitor official sources for updates and security advisories

Long-Term Security Practices

Regularly update software and firmware to the latest versions
Conduct security assessments and audits periodically

Patching and Updates

Zephyrproject-rtos may release patches and updates to address this vulnerability.