CVE-2020-3700 : What You Need to Know

A possible out-of-bounds read vulnerability in Qualcomm's Snapdragon products could lead to local information disclosure in various devices without additional execution privileges.

Understanding CVE-2020-3700

This CVE identifies a potential security issue in Qualcomm's Snapdragon products that could result in local information exposure.

What is CVE-2020-3700?

The vulnerability stems from a missing bounds check in the wifi driver, allowing for an out-of-bounds read that may disclose sensitive data locally.

The Impact of CVE-2020-3700

The vulnerability could be exploited to access local information without requiring additional execution privileges, posing a risk of data exposure.

Technical Details of CVE-2020-3700

Qualcomm's affected products and versions are detailed below:

Vulnerability Description

Type: Buffer Over-read Issue in WLAN
Scope: Possible out-of-bounds read leading to local information disclosure

Affected Systems and Versions

Products: Snapdragon Auto, Compute, Connectivity, Consumer IOT, Mobile, Voice & Music, Wearables, Wired Infrastructure, and Networking
Versions: APQ8053, APQ8096AU, IPQ4019, IPQ8064, IPQ8074, MDM9607, MSM8909W, MSM8996AU, QCA6574AU, QCA9531, QCA9558, QCA9980, SC8180X, SDM439, SDX55, SM8150, SM8250, SXR2130

Exploitation Mechanism

The vulnerability could be exploited by an attacker to read beyond the allocated memory bounds, potentially accessing sensitive information stored in the wifi driver.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-3700 vulnerability:

Immediate Steps to Take

Apply security patches provided by Qualcomm promptly
Monitor official sources for updates and advisories

Long-Term Security Practices

Regularly update firmware and software to the latest versions
Implement network segmentation and access controls to limit exposure

Patching and Updates

Stay informed about security bulletins and patches from Qualcomm
Ensure timely installation of firmware updates to mitigate the vulnerability