CVE-2021-1971 Explained : Impact and Mitigation

This article provides detailed information about CVE-2021-1971, a vulnerability impacting various Qualcomm products.

Understanding CVE-2021-1971

CVE-2021-1971 is a vulnerability that can lead to possible assertion due to the lack of physical layer state validation in multiple Qualcomm products.

What is CVE-2021-1971?

The vulnerability in Qualcomm products can result in a possible assertion due to insufficient physical layer state validation.

The Impact of CVE-2021-1971

The impact of CVE-2021-1971 is rated as high with a base severity of 7.5. It does not require any privileges to exploit, and it can affect the availability of the systems.

Technical Details of CVE-2021-1971

This section covers the technical details related to CVE-2021-1971.

Vulnerability Description

The vulnerability involves a buffer over-read in WLAN, leading to the lack of physical layer state validation.

Affected Systems and Versions

Qualcomm products affected by this vulnerability include Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking.

Exploitation Mechanism

The attack complexity is low, and it can be exploited over a network without requiring any user interaction.

Mitigation and Prevention

To prevent exploitation of CVE-2021-1971, immediate actions need to be taken along with long-term security measures.

Immediate Steps to Take

It is recommended to apply patches provided by Qualcomm promptly and monitor security bulletins for updates.

Long-Term Security Practices

Implement secure coding practices, network segmentation, and regular security audits to enhance overall system security.

Patching and Updates

Regularly update all Qualcomm products with the latest security patches to mitigate the risk associated with this vulnerability.