CVE-2020-3646 Explained : Impact and Mitigation

A buffer overflow vulnerability affecting multiple Qualcomm Snapdragon products.

Understanding CVE-2020-3646

This CVE involves a buffer overflow issue in various Qualcomm Snapdragon devices.

What is CVE-2020-3646?

A buffer overflow occurs due to the destination buffer size being smaller than the source buffer size in video applications on Qualcomm Snapdragon devices.

The Impact of CVE-2020-3646

This vulnerability could allow attackers to execute arbitrary code or cause a denial of service on affected devices.

Technical Details of CVE-2020-3646

Details of the vulnerability and affected systems.

Vulnerability Description

The vulnerability stems from a buffer overflow in video applications on Qualcomm Snapdragon devices.

Affected Systems and Versions

Products: Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables
Versions: Bitra, MSM8909W, QCM2150, QCS405, QCS605, Saipan, SC8180X, SDA845, SDM429W, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR2130

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious video file to trigger the buffer overflow.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-3646.

Immediate Steps to Take

Apply patches provided by Qualcomm promptly.
Avoid opening video files from untrusted sources.

Long-Term Security Practices

Regularly update device firmware and software.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Check Qualcomm's security bulletins for patches and updates to address this vulnerability.