CVE-2019-2226 Explained : Impact and Mitigation

Android Bluetooth Server Vulnerability

Understanding CVE-2019-2226

This CVE involves a vulnerability in the Android Bluetooth server that could lead to information disclosure.

What is CVE-2019-2226?

The device_class.cc file in Android contains a function with a potential issue related to incorrect casting, allowing for an out-of-bounds read. Exploiting this vulnerability could disclose local information within the Bluetooth server.

The Impact of CVE-2019-2226

Attackers with User execution privileges can exploit this vulnerability without requiring user interaction.
Affected Android versions include Android-8.0, Android-8.1, Android-9, and Android-10.

Technical Details of CVE-2019-2226

Vulnerability Description

The vulnerability lies in the device_class_to_int function in device_class.cc, potentially leading to an out-of-bounds read and local information disclosure in the Bluetooth server.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability involves incorrect casting in the device_class.cc file, allowing attackers to read out of bounds and access local information within the Bluetooth server.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by Android for the affected versions.
Monitor security bulletins and updates from Android for any remediation steps.

Long-Term Security Practices

Regularly update Android devices to the latest software versions.
Implement proper access controls and user privilege management to mitigate similar vulnerabilities.

Patching and Updates

Android has released security patches addressing this vulnerability in the affected Android versions.