CVE-2021-1976 Explained : Impact and Mitigation
Get detailed insights into CVE-2021-1976, a critical Use After Free vulnerability affecting various Qualcomm products. Learn about its impacts, affected systems, and mitigation steps.
A detailed overview of CVE-2021-1976 focusing on the impact, technical details, and mitigation steps.
Understanding CVE-2021-1976
This section provides insights into the CVE-2021-1976 vulnerability affecting Qualcomm products.
What is CVE-2021-1976?
The vulnerability involves a use after free issue due to improper validation of the P2P device address in PD Request frames on various Qualcomm products.
The Impact of CVE-2021-1976
The vulnerability has a CVSS base score of 9.8 (Critical) with high impacts on confidentiality, integrity, and availability. It affects a wide range of Qualcomm products including Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, Voice & Music, Wearables, Wired Infrastructure, and Networking.
Technical Details of CVE-2021-1976
This section delves deeper into the technical aspects of the CVE-2021-1976 vulnerability.
Vulnerability Description
The vulnerability arises from improper validation of P2P device addresses in PD Request frames.
Affected Systems and Versions
Various products from Qualcomm including APQ8009, APQ8064AU, IPQ6018, MSM8917, QCA6174, and many more are affected.
Exploitation Mechanism
The vulnerability can be exploited via a network with low attack complexity and no user interaction required.
Mitigation and Prevention
This section outlines the steps to mitigate the CVE-2021-1976 vulnerability and prevent exploitation.
Immediate Steps to Take
Users and administrators are advised to apply patches from Qualcomm promptly to address the vulnerability.
Long-Term Security Practices
Regular security updates and monitoring of Qualcomm product security advisories are recommended for long-term security.
Patching and Updates
Ensure that affected systems and devices are updated with the latest security patches provided by Qualcomm.