CVE-2020-3691 Explained : Impact and Mitigation

Possible out of bound memory access in audio due to integer underflow in various Qualcomm Snapdragon products.

Understanding CVE-2020-3691

This CVE involves a potential security issue in Qualcomm Snapdragon products that could lead to out of bound memory access.

What is CVE-2020-3691?

The vulnerability stems from an integer underflow while processing modified contents in a range of Qualcomm Snapdragon products.

The Impact of CVE-2020-3691

The vulnerability could be exploited to trigger out of bound memory access, potentially leading to unauthorized access or denial of service.

Technical Details of CVE-2020-3691

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

Vulnerability Description

The issue arises from an integer underflow in audio processing, which could result in out of bound memory access.

Affected Systems and Versions

Vendor: Qualcomm, Inc.
Products: Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, IoT, Mobile, Voice & Music, Wearables, Wired Infrastructure, and Networking
Versions: A wide range of versions including APQ series, MDM series, MSM series, PM series, QCA series, QCM series, QCS series, QDM series, QET series, QFE series, QFS series, QLN series, QPA series, QPM series, QSM series, QSW series, QTC series, Qualcomm series, RGR series, RSW series, RTR series, SA series, SC series, SD series, SM series, SMB series, SMR series, WCD series, WCN series, WFR series, WGR series, WHS series, WSA series, WTR series

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to manipulate audio processing and potentially gain unauthorized access or disrupt services.

Mitigation and Prevention

Steps to address and prevent the CVE from being exploited.

Immediate Steps to Take

Apply security patches provided by Qualcomm promptly.
Monitor for any unusual audio processing activities.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update firmware and software to the latest versions.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate users and administrators on safe audio file handling practices.

Patching and Updates

Stay informed about security bulletins and updates from Qualcomm.
Ensure timely installation of patches to mitigate the risk of exploitation.