CVE-2021-30303 : Security Advisory and Response

This CVE involves a possible buffer overflow in multiple Qualcomm Snapdragon products due to the lack of buffer length check when receiving segmented WMI commands.

Understanding CVE-2021-30303

This section covers the details of the CVE-2021-30303 vulnerability.

What is CVE-2021-30303?

The vulnerability leads to a possible buffer overflow in various Qualcomm Snapdragon products.

The Impact of CVE-2021-30303

The impact of this vulnerability is considered high, affecting confidentiality, integrity, and availability.

Technical Details of CVE-2021-30303

Here, we dive into the technical aspects of the CVE-2021-30303 vulnerability.

Vulnerability Description

The vulnerability arises due to a lack of buffer length check in segmented WMI commands.

Affected Systems and Versions

Qualcomm Snapdragon Auto, Compute, Connectivity, Consumer Electronics, Consumer IOT, Industrial IOT, Mobile, Voice & Music, Wired Infrastructure, and Networking products are affected.

Exploitation Mechanism

The vulnerability allows for a possible buffer overflow, which can be exploited locally with low privileges required.

Mitigation and Prevention

In this section, we discuss the steps to mitigate and prevent exploitation of CVE-2021-30303.

Immediate Steps to Take

Users are advised to apply security patches provided by Qualcomm promptly to address the vulnerability.

Long-Term Security Practices

Implementing network segmentation, least privilege access, and regular security updates can enhance the long-term security posture.

Patching and Updates

Regularly check for security bulletins from Qualcomm and apply patches as soon as they are released to stay protected.