CVE-2021-1936 Explained : Impact and Mitigation
Discover the impact of CVE-2021-1936, a null pointer dereference vulnerability in various Qualcomm Snapdragon products. Learn about affected systems, technical details, and mitigation steps.
A Null pointer dereference vulnerability has been identified in various Qualcomm Snapdragon products, potentially leading to a high impact on affected systems.
Understanding CVE-2021-1936
This section delves into the details of CVE-2021-1936, exploring its implications and technical aspects.
What is CVE-2021-1936?
CVE-2021-1936 is a null pointer dereference vulnerability found in Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, and Wearables by Qualcomm. This vulnerability stems from a lack of null check for user input.
The Impact of CVE-2021-1936
With a CVSS base score of 7.5, this vulnerability can be exploited over a network with high availability impact. The attack complexity is low, and no user interaction or privileges are required, maintaining confidentiality and integrity.
Technical Details of CVE-2021-1936
This section outlines the technical specifics of CVE-2021-1936 to provide clarity on the vulnerability's nature.
Vulnerability Description
The vulnerability arises due to missing null checks for user input, potentially resulting in a null pointer dereference in Qualcomm Snapdragon products.
Affected Systems and Versions
Several Qualcomm Snapdragon products are affected, including but not limited to APQ8009W, MSM8917, SD855, SD865 5G, SD888, and more.
Exploitation Mechanism
The vulnerability can be exploited through network-based vectors without the need for user interaction or elevated privileges.
Mitigation and Prevention
In response to CVE-2021-1936, immediate actions and long-term security measures are essential to safeguard systems from potential exploitation.
Immediate Steps to Take
Users are advised to apply patches and updates provided by Qualcomm to mitigate the vulnerability promptly.
Long-Term Security Practices
Implementing secure coding practices and continuous monitoring can enhance system defenses against similar vulnerabilities in the future.
Patching and Updates
Regularly check for security bulletins and updates from Qualcomm to stay informed about patches addressing CVE-2021-1936.