CVE-2019-14100 : What You Need to Know

Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music by Qualcomm, Inc. are affected by a vulnerability that allows the use of an out-of-range pointer offset in the neural processing unit.

Understanding CVE-2019-14100

This CVE involves a security issue in various Qualcomm platforms that could potentially lead to unauthorized register writing.

What is CVE-2019-14100?

By default, the registration for writing via debugfs is disabled to prevent any writing of registers via debugfs on Qualcomm platforms, including Snapdragon Auto, Compute, Consumer IOT, Industrial IOT, Mobile, and Voice & Music.

The Impact of CVE-2019-14100

The vulnerability allows attackers to exploit an out-of-range pointer offset in the neural processing unit, potentially leading to unauthorized access and manipulation of registers.

Technical Details of CVE-2019-14100

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The issue arises from the use of an out-of-range pointer offset in the neural processing unit, enabling unauthorized register writing.

Affected Systems and Versions

Products: Snapdragon Auto, Compute, Consumer IOT, Industrial IOT, Mobile, Voice & Music
Versions: MDM9206, MDM9207C, MDM9607, Nicobar, QCS405, SA6155P, SC8180X, SDX55, SM8150

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the out-of-range pointer offset in the neural processing unit to gain unauthorized access to and manipulate registers.

Mitigation and Prevention

Protecting systems from CVE-2019-14100 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable debugfs access where unnecessary to prevent unauthorized register writing.
Implement strict access controls to limit write permissions to critical registers.

Long-Term Security Practices

Regularly monitor and audit register writes for anomalies or unauthorized activities.
Stay informed about security bulletins and updates from Qualcomm to address vulnerabilities promptly.

Patching and Updates

Apply patches and updates provided by Qualcomm to mitigate the CVE-2019-14100 vulnerability effectively.