CVE-2018-3576 Explained : Impact and Mitigation

CVE-2018-3576 was published on May 11, 2018, by Qualcomm, Inc. The vulnerability affects Android for MSM, Firefox OS for MSM, and QRD Android versions using the Linux kernel.

Understanding CVE-2018-3576

This CVE involves an improper validation of array index in the WiFi driver function sapInterferenceRssiCount, leading to an array out-of-bounds access in various Qualcomm Android releases.

What is CVE-2018-3576?

The vulnerability arises from inadequate validation of the array index in the WiFi driver, allowing unauthorized access beyond the array's boundaries.

The Impact of CVE-2018-3576

The vulnerability can be exploited to execute arbitrary code, crash the system, or potentially gain elevated privileges on affected devices.

Technical Details of CVE-2018-3576

The technical aspects of this CVE are as follows:

Vulnerability Description

The function sapInterferenceRssiCount() in the WiFi driver lacks proper array index validation, enabling out-of-bounds access.

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 vulnerability allows attackers to manipulate the array index, leading to unauthorized access to memory locations beyond the intended boundaries.

Mitigation and Prevention

To address CVE-2018-3576, follow these steps:

Immediate Steps to Take

Apply security patches provided by Qualcomm or device manufacturers promptly.
Monitor official sources for updates and advisories regarding this vulnerability.

Long-Term Security Practices

Regularly update software and firmware on affected devices.
Implement network security measures to detect and prevent unauthorized access.

Patching and Updates

Install the latest patches and updates from Qualcomm or device vendors to mitigate the vulnerability effectively.