CVE-2019-2337 : Vulnerability Insights and Analysis

Snapdragon devices by Qualcomm may experience shutdown due to a buffer over-read issue in NAS.

Understanding CVE-2019-2337

Snapdragon devices are susceptible to a critical vulnerability that could lead to unexpected shutdowns.

What is CVE-2019-2337?

The vulnerability in Snapdragon devices can cause a device to shut down if the buffer is being read while skipping unknown IES, even if the number of bytes to read exceeds the message length.

The Impact of CVE-2019-2337

The vulnerability poses a risk of unexpected device shutdowns, potentially affecting the usability and reliability of the affected devices.

Technical Details of CVE-2019-2337

Snapdragon devices are affected by a buffer over-read issue in NAS.

Vulnerability Description

The vulnerability arises when EMM reads the buffer even if the number of bytes to read exceeds the message length, leading to potential device shutdowns.

Affected Systems and Versions

Products: Snapdragon Auto, Compute, Consumer IOT, Industrial IOT, Mobile, Wearables
Versions: APQ8053, APQ8096AU, APQ8098, MDM9150, MDM9205, MDM9206, MDM9640, MDM9650, MDM9655, MSM8905, MSM8909, MSM8909W, and more.

Exploitation Mechanism

The vulnerability occurs when the device attempts to read the buffer while skipping unknown IES, triggering a shutdown even if the bytes to read exceed the message length.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-2337 vulnerability.

Immediate Steps to Take

Apply patches and updates provided by Qualcomm promptly.
Monitor official Qualcomm security bulletins for further instructions.

Long-Term Security Practices

Regularly update device firmware and software to mitigate potential vulnerabilities.
Implement security best practices to enhance the overall security posture of Snapdragon devices.

Patching and Updates

Stay informed about security updates and patches released by Qualcomm.