CVE-2021-30347 : Vulnerability Insights and Analysis

A critical vulnerability has been identified in multiple Qualcomm products, leading to a race condition due to an improper integrity check. This CVE affects a wide range of Snapdragon devices across various sectors.

Understanding CVE-2021-30347

This section will provide insights into what CVE-2021-30347 entails, its impact, technical details, and how to mitigate the risks associated with this vulnerability.

What is CVE-2021-30347?

The vulnerability stems from an improper integrity check, which creates a race condition between tasks PDCP and RRC right after a valid RRC Command packet is received in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, and Snapdragon Mobile platforms.

The Impact of CVE-2021-30347

With a CVSS base score of 9.1, this vulnerability is classified as critical. It poses high risks to confidentiality and integrity, emphasizing the urgency of addressing this issue promptly.

Technical Details of CVE-2021-30347

In this section, we delve into the specifics of the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from an improper integrity check, leading to a race condition between tasks PDCP and RRC upon receiving a valid RRC Command packet.

Affected Systems and Versions

Qualcomm products such as Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile are impacted. The extensive list of affected versions includes AR8035, QCA6390, QCA6391, and many others.

Exploitation Mechanism

The vulnerability can be exploited due to a timing discrepancy, allowing malicious actors to potentially manipulate the system by leveraging the race condition.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks associated with CVE-2021-30347 and safeguard affected systems.

Immediate Steps to Take

It is crucial to apply security patches provided by Qualcomm promptly to address the vulnerability. Additionally, tightening network access controls can help reduce the exposure to potential attacks.

Long-Term Security Practices

Implementing robust security measures such as regular security audits, employee training on cybersecurity best practices, and ensuring timely software updates can enhance the overall security posture.

Patching and Updates

Regularly check for security updates and patches released by Qualcomm to stay protected against emerging threats and vulnerabilities.