CVE-2021-35126 Explained : Impact and Mitigation
Get insights into CVE-2021-35126, a memory corruption vulnerability in Snapdragon Auto, Compute, Connectivity, IOT, and Mobile products. Learn about impacts, affected versions, and mitigation steps.
This article provides an overview of CVE-2021-35126, a memory corruption vulnerability affecting multiple Qualcomm products.
Understanding CVE-2021-35126
CVE-2021-35126 involves memory corruption in the DSP service of various Qualcomm products due to improper validation of input parameters.
What is CVE-2021-35126?
The vulnerability arises from a lack of proper input validation in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IoT, and Snapdragon Mobile products, leading to memory corruption in the DSP service.
The Impact of CVE-2021-35126
With a CVSS base score of 8.4 (High severity), the vulnerability has a significant impact on the confidentiality, integrity, and availability of affected systems. It requires no special privileges for exploitation.
Technical Details of CVE-2021-35126
The following technical details summarize the vulnerability:
Vulnerability Description
The issue results from improper validation of input parameters within the DSP service of the mentioned Qualcomm products.
Affected Systems and Versions
Impacted products include Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, and Snapdragon Mobile. Various versions are affected, such as QAM8295P, QCA6391, QCA6696, and more.
Exploitation Mechanism
The vulnerability's attack complexity is low, requiring local access. It does not involve user interaction and retains the system's scope unchanged.
Mitigation and Prevention
To address CVE-2021-35126, consider the following mitigation strategies:
Immediate Steps to Take
- Apply security patches provided by Qualcomm promptly.
- Implement network segmentation to limit exposure to the vulnerable service.
Long-Term Security Practices
- Regularly update software and firmware to the latest versions.
- Conduct security assessments and audits to identify and remediate vulnerabilities proactively.
Patching and Updates
Stay informed about security bulletins and advisories from Qualcomm to prioritize the installation of relevant patches and updates.