CVE-2021-35091 Explained : Impact and Mitigation
Discover the details of CVE-2021-35091 affecting Snapdragon Connectivity and Snapdragon Mobile products by Qualcomm. Learn about the impact, affected systems, and mitigation steps.
A possible out of bounds read vulnerability has been identified in Snapdragon Connectivity and Snapdragon Mobile, affecting various versions of Qualcomm products. This CVE arises from improper typecasting while handling page faults for global memory, potentially leading to a high severity impact.
Understanding CVE-2021-35091
This section delves into the specifics of the CVE-2021-35091 vulnerability, including its impact and technical details.
What is CVE-2021-35091?
The CVE-2021-35091 vulnerability involves a possible out of bounds read due to improper typecasting in the global memory handling of Snapdragon Connectivity and Snapdragon Mobile products.
The Impact of CVE-2021-35091
With a CVSS base score of 8.4, this vulnerability has a high severity impact on confidentiality, integrity, and availability of the affected systems, posing a significant risk for exploitation.
Technical Details of CVE-2021-35091
This section outlines the technical aspects of the CVE-2021-35091 vulnerability, including its description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability stems from incorrect type conversion or cast in the Linux graphics of Qualcomm products, leading to potential out of bounds read scenarios.
Affected Systems and Versions
Qualcomm products such as Snapdragon Connectivity and Snapdragon Mobile are impacted by this vulnerability across versions including SD 8 Gen1 5G, WCD9380, WCN6855, WCN6856, WSA8830, WSA8835.
Exploitation Mechanism
The vulnerability can be exploited through local access, requiring no special privileges from users, but can result in significant impacts on system availability, confidentiality, and integrity.
Mitigation and Prevention
To safeguard systems from the CVE-2021-35091 vulnerability, immediate and long-term security measures are essential.
Immediate Steps to Take
Promptly apply patches and updates provided by Qualcomm to address the vulnerability and mitigate potential risks.
Long-Term Security Practices
Implement robust security protocols, regularly update systems, and conduct thorough security audits to ensure ongoing protection against similar vulnerabilities.
Patching and Updates
Stay informed about security bulletins and patches released by Qualcomm to proactively safeguard systems from emerging threats.