CVE-2021-30340 : What You Need to Know

The CVE-2021-30340 vulnerability affects Qualcomm Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile series due to improper validation of coreset in PDCCH configuration in SA mode.

Understanding CVE-2021-20657

This section dives into the specifics of CVE-2021-30340.

What is CVE-2021-20657?

The vulnerability involves a reachable assertion caused by improper validation of coreset in PDCCH configuration in SA mode in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, and Snapdragon Mobile.

The Impact of CVE-2021-20657

With a CVSS base score of 7.5, this high-severity vulnerability can be exploited over a network with high availability impact, posing a risk to affected systems.

Technical Details of CVE-2021-20657

Explore the technical aspects of CVE-2021-30340 in this section.

Vulnerability Description

The vulnerability results from inadequate validation of coreset in PDCCH configuration in SA mode in specified Qualcomm Snapdragon products.

Affected Systems and Versions

Products like AR8035, QCA6390, QCA6391, and more are impacted across various Snapdragon series versions.

Exploitation Mechanism

The vulnerability can be exploited via a network without requiring user interaction, with high availability impact.

Mitigation and Prevention

Discover how to address and prevent CVE-2021-30340.

Immediate Steps to Take

Immediate mitigation steps should include applying patches provided by the vendor and monitoring for any signs of exploitation.

Long-Term Security Practices

Implementing robust network security measures and regular system patching can enhance overall defense against such vulnerabilities.

Patching and Updates

Regularly check for security bulletins and updates from Qualcomm to ensure all affected systems are promptly patched and secured.