CVE-2021-1961 Explained : Impact and Mitigation
Learn about CVE-2021-1961, a buffer overflow vulnerability in Qualcomm Snapdragon products. Discover its impact, affected systems, and mitigation steps to secure your devices.
This article provides detailed information about CVE-2021-1961, a possible buffer overflow vulnerability in multiple Qualcomm Snapdragon products.
Understanding CVE-2021-1961
CVE-2021-1961 is a vulnerability in Qualcomm Snapdragon products that could lead to a buffer overflow due to a lack of offset length check while updating the buffer value.
What is CVE-2021-1961?
The vulnerability arises from an absence of offset length verification during buffer value updates in various Qualcomm Snapdragon products.
The Impact of CVE-2021-1961
The impact of this vulnerability is rated as medium severity with a CVSS base score of 6.7, potentially leading to high confidentiality, integrity, and availability impacts. The attack complexity is low, but high privileges are required for exploitation.
Technical Details of CVE-2021-1961
This section delves into the technical aspects of CVE-2021-1961 to provide a deeper understanding of the vulnerability.
Vulnerability Description
The vulnerability stems from a buffer copy operation without verifying the size of the input in the high-level operating system present in affected Qualcomm Snapdragon products.
Affected Systems and Versions
Multiple Qualcomm Snapdragon products across various categories like Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, Mobile, Voice & Music, and Wearables are affected. The vulnerability impacts a wide array of versions within these product lines.
Exploitation Mechanism
The vulnerability can be exploited locally with high privileges required. No user interaction is necessary, and the scope remains unchanged during an attack.
Mitigation and Prevention
To address CVE-2021-1961, immediate steps and long-term security practices are recommended to safeguard systems from potential exploitation.
Immediate Steps to Take
It is crucial to apply security patches and updates provided by Qualcomm to mitigate the risk associated with this vulnerability. Regular monitoring and assessment of system integrity are also recommended.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security audits, and employing strict input validation mechanisms can help prevent similar buffer overflow vulnerabilities in the future.
Patching and Updates
Qualcomm has released security patches and updates to address CVE-2021-1961. It is essential for users of affected Snapdragon products to promptly apply these patches to secure their devices.