CVE-2018-9506 Explained : Impact and Mitigation

A potential issue has been identified in the avrc_msg_cback function within the avrc_api.cc file, leading to a vulnerability affecting various Android versions.

Understanding CVE-2018-9506

This CVE involves an out-of-bound read vulnerability in Android versions, potentially enabling remote information disclosure via Bluetooth without user interaction.

What is CVE-2018-9506?

The vulnerability arises from a missing bounds check in the avrc_msg_cback function within the avrc_api.cc file.
Exploitation of this vulnerability could allow remote information disclosure over Bluetooth without requiring additional execution privileges.
User interaction is not necessary for the exploitation of this vulnerability.

The Impact of CVE-2018-9506

Affected Product: Android
Vendor: Google Inc.
Versions: Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1, Android-9.0

Technical Details of CVE-2018-9506

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability is located in the avrc_msg_cback function within the avrc_api.cc file.
It results from the absence of a bounds check, leading to a potential out-of-bound read.

Affected Systems and Versions

Android-7.0
Android-7.1.1
Android-7.1.2
Android-8.0
Android-8.1
Android-9.0

Exploitation Mechanism

The vulnerability could be exploited to achieve remote information disclosure over Bluetooth without the need for additional execution privileges.

Mitigation and Prevention

Protective measures and steps to mitigate the CVE-2018-9506 vulnerability.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Disable Bluetooth when not in use to minimize exposure.
Monitor vendor security bulletins for updates and advisories.

Long-Term Security Practices

Regularly update the Android operating system to the latest version.
Implement network segmentation to isolate Bluetooth-enabled devices.

Patching and Updates

Google Inc. may release security patches addressing this vulnerability.