CVE-2017-15856 Explained : Impact and Mitigation

Android releases from CAF that utilize the Linux kernel may experience a double free issue when processing the power stats debug file for reading status due to a race condition.

Understanding CVE-2017-15856

This CVE involves a double free issue in WLAN components of Qualcomm products.

What is CVE-2017-15856?

The vulnerability in Android releases from CAF using the Linux kernel can lead to a double free issue when processing power stats debug files.

The Impact of CVE-2017-15856

The vulnerability can result in a double free condition, potentially leading to system crashes or unauthorized access to sensitive information.

Technical Details of CVE-2017-15856

This section provides detailed technical information about the CVE.

Vulnerability Description

A race condition in processing power stats debug files can trigger a double free issue in Android releases from CAF using the Linux kernel.

Affected Systems and Versions

Product: Android for MSM, Firefox OS for MSM, QRD Android
Vendor: Qualcomm, Inc.
Versions: All Android releases from CAF using the Linux kernel

Exploitation Mechanism

The issue arises from a race condition while processing the power stats debug file for reading status.

Mitigation and Prevention

Protect systems from CVE-2017-15856 by following these steps:

Immediate Steps to Take

Apply security patch level 2018-06-05 or later to mitigate the vulnerability.
Monitor vendor security bulletins for updates and patches.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Implement network segmentation and access controls to limit the impact of potential exploits.

Patching and Updates

Stay informed about security updates from Qualcomm and Android sources.