CVE-2020-0463 : Security Advisory and Response

Android Bluetooth Server Out of Bounds Read Vulnerability

Understanding CVE-2020-0463

This CVE involves a potential out of bounds read vulnerability in the Android Bluetooth server that could result in remote information disclosure.

What is CVE-2020-0463?

The vulnerability exists in sdp_server_handle_client_req of sdp_server.cc, allowing for an out of bounds read due to a missing bounds check. It may lead to remote information disclosure from the Bluetooth server without requiring additional execution privileges, and no user interaction is necessary for exploitation.

The Impact of CVE-2020-0463

The vulnerability could enable an attacker to access sensitive information from the Bluetooth server remotely, posing a risk of information disclosure.

Technical Details of CVE-2020-0463

The technical aspects of the vulnerability are as follows:

Vulnerability Description

The issue resides in sdp_server_handle_client_req of sdp_server.cc, where a missing bounds check can trigger an out of bounds read.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited remotely without the need for user interaction, potentially leading to the disclosure of information.

Mitigation and Prevention

To address CVE-2020-0463, the following steps can be taken:

Immediate Steps to Take

Apply security patches provided by the vendor.
Monitor official sources for updates and security advisories.

Long-Term Security Practices

Regularly update the Android system and installed applications.
Implement network security measures and use secure Bluetooth settings.

Patching and Updates

Ensure that all relevant patches and updates are applied promptly to mitigate the risk of exploitation.