CVE-2020-0413 : Security Advisory and Response

Android Bluetooth Server Out-of-Bounds Read Vulnerability

Understanding CVE-2020-0413

Android Bluetooth servers are susceptible to an out-of-bounds read vulnerability, potentially leading to remote information disclosure without requiring user interaction.

What is CVE-2020-0413?

This CVE involves an issue in gatt_cl.cc's gatt_process_read_by_type_rsp, where a missing bounds check can trigger an out-of-bounds read, posing a risk of remote information exposure in the Bluetooth server.

The Impact of CVE-2020-0413

The vulnerability could allow a threat actor to access sensitive data from the Android Bluetooth server remotely, compromising user privacy and potentially leading to information leaks.

Technical Details of CVE-2020-0413

Android Bluetooth Server Out-of-Bounds Read Vulnerability

Vulnerability Description

The vulnerability arises due to a missing bounds check in the gatt_process_read_by_type_rsp function, potentially enabling remote information disclosure in the Android Bluetooth server.

Affected Systems and Versions

Affected Product: Android
Affected Versions: Android-8.1, Android-9, Android-10, Android-11, Android-8.0

Exploitation Mechanism

The vulnerability could be exploited remotely without requiring any additional execution privileges or user interaction, making it a critical security concern for Android devices.

Mitigation and Prevention

Proactive steps must be taken to mitigate the risks posed by CVE-2020-0413.

Immediate Steps to Take

Update Android devices to the latest security patches provided by the vendor.
Monitor for any unusual behavior on Bluetooth connections.
Educate users on safe Bluetooth usage practices to minimize exposure.

Long-Term Security Practices

Regularly update all systems and software to ensure vulnerabilities are promptly addressed.
Implement network segmentation to limit the impact of potential breaches.
Conduct regular security audits to identify and address any new threats.

Patching and Updates

It is crucial to apply patches promptly to secure Android devices from known vulnerabilities and maintain the resilience of the Bluetooth server.