CVE-2021-30294 : Exploit Details and Defense Strategies
Learn about CVE-2021-30294, a high-severity vulnerability in Qualcomm Snapdragon products potentially allowing null pointer dereference. Find out the impacted systems and mitigation steps.
A potential null pointer dereference in KGSL GPU auxiliary command due to improper validation of user input in various Qualcomm Snapdragon products.
Understanding CVE-2021-30294
This CVE highlights a vulnerability in Qualcomm Snapdragon products that can lead to a null pointer dereference due to incorrect user input validation.
What is CVE-2021-30294?
CVE-2021-30294 points to a flaw in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Industrial IOT, and Snapdragon Mobile devices, potentially allowing attackers to exploit the KGSL GPU auxiliary command.
The Impact of CVE-2021-30294
With a CVSS base score of 8.4, this high-severity vulnerability could result in a denial of service, compromising data integrity and confidentiality without requiring special privileges from the attacker.
Technical Details of CVE-2021-30294
This section delves into the specifics of the vulnerability in Qualcomm products.
Vulnerability Description
The vulnerability arises from improper validation of user input, leading to a null pointer dereference in the KGSL GPU auxiliary command.
Affected Systems and Versions
Qualcomm Snapdragon products affected by this vulnerability include a wide range of versions such as QCA6174A, QCA6574, QCA6595AU, SDX12, and more.
Exploitation Mechanism
Attackers can exploit this vulnerability by providing specially crafted input to the GPU auxiliary command, potentially causing a null pointer dereference.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2021-30294.
Immediate Steps to Take
Users are advised to apply patches provided by Qualcomm and keep their devices up to date to prevent exploitation of this vulnerability.
Long-Term Security Practices
Implement strong input validation mechanisms and regularly update devices to stay protected against known vulnerabilities.
Patching and Updates
Regularly check for security bulletins from Qualcomm and promptly install updates to address critical vulnerabilities.