CVE-2018-9446 Explained : Impact and Mitigation

Android smp_br_state_machine_event Function Remote Code Execution Vulnerability

Understanding CVE-2018-9446

What is CVE-2018-9446?

CVE-2018-9446 is a remote code execution vulnerability in the smp_br_state_machine_event function within the smp_br_main.cc file of Android versions 6.0 to 8.1. This flaw allows for the execution of arbitrary code without the need for additional privileges.

The Impact of CVE-2018-9446

This vulnerability can be exploited remotely, potentially leading to the execution of arbitrary code on affected devices without requiring user interaction.

Technical Details of CVE-2018-9446

Vulnerability Description

The issue lies in the smp_br_state_machine_event function, where a write beyond the allocated memory can occur due to corruption, enabling remote code execution.

Affected Systems and Versions

Product: Android
Vendor: Google Inc.
Affected Versions: Android-6.0, Android-6.0.1, Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1

Exploitation Mechanism

The vulnerability allows attackers to exploit the smp_br_state_machine_event function remotely, executing arbitrary code without the need for additional privileges.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by Google for the affected Android versions.
Monitor official sources for updates and security bulletins.

Long-Term Security Practices

Regularly update Android devices to the latest software versions.
Implement network security measures to prevent remote exploitation.
Conduct security audits and assessments to identify and address vulnerabilities.

Patching and Updates

Google has released security patches addressing CVE-2018-9446. Users should promptly update their Android devices to the latest patched versions.