CVE-2017-7371 Explained : Impact and Mitigation

Android releases from CAF using the Linux kernel may be vulnerable to a Use After Free issue when SLIMbus is deactivated by Bluetooth.

Understanding CVE-2017-7371

This CVE involves a vulnerability in Qualcomm products running Android releases from CAF with the Linux kernel, potentially leading to a data pointer being used after it has been freed.

What is CVE-2017-7371?

In CAF-powered Android versions with the Linux kernel, deactivating SLIMbus via Bluetooth can result in a data pointer being utilized even after it has been freed.

The Impact of CVE-2017-7371

The vulnerability could allow malicious actors to exploit the system by using the freed data pointer, potentially leading to unauthorized access or system compromise.

Technical Details of CVE-2017-7371

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue arises when SLIMbus is turned off by Bluetooth in Android releases from CAF using the Linux kernel, allowing a data pointer to be accessed after it has been freed.

Affected Systems and Versions

All Qualcomm products
All Android releases from CAF using the Linux kernel

Exploitation Mechanism

The vulnerability occurs due to improper handling of data pointers when SLIMbus is deactivated by Bluetooth, enabling unauthorized access to freed memory.

Mitigation and Prevention

Protecting systems from CVE-2017-7371 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches provided by Qualcomm or relevant vendors promptly.
Monitor security bulletins for updates and advisories related to this vulnerability.

Long-Term Security Practices

Regularly update software and firmware to mitigate known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential exploits.

Patching and Updates

Ensure all affected systems are updated with the latest patches to address the Use After Free vulnerability.