CVE-2021-1983 : Security Advisory and Response
Learn about CVE-2021-1983, a high-severity vulnerability in Qualcomm products due to improper data length handling, potentially leading to a buffer overflow issue in VR services.
This article provides detailed information about CVE-2021-1983, a possible buffer overflow vulnerability affecting a wide range of Qualcomm products.
Understanding CVE-2021-1983
CVE-2021-1983 is a vulnerability related to improper handling of negative data length in the VR service of various Qualcomm products.
What is CVE-2021-1983?
CVE-2021-1983 involves a possible buffer overflow due to the mishandling of negative data length during write request processing in Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, and Wearables.
The Impact of CVE-2021-1983
The impact of CVE-2021-1983 is rated as high, with a base score of 8.4 under CVSS v3.1. The vulnerability can lead to high confidentiality, integrity, and availability impact, with no privileged access required for exploitation.
Technical Details of CVE-2021-1983
This section delves into the specific technical aspects of CVE-2021-1983.
Vulnerability Description
The vulnerability stems from an integer overflow leading to a buffer overflow within the VR service of the affected Qualcomm products.
Affected Systems and Versions
Products impacted include Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, and Wearables, with a wide range of versions from various product lines listed as vulnerable.
Exploitation Mechanism
The vulnerability can be exploited by malicious actors through specific handling of write requests in the affected VR service.
Mitigation and Prevention
For users and organizations affected by CVE-2021-1983, taking immediate steps and implementing long-term security practices is crucial to mitigate the risks.
Immediate Steps to Take
Users should apply security patches and updates provided by Qualcomm to address the vulnerability promptly.
Long-Term Security Practices
Implementing robust security protocols and regularly updating systems can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly check for security bulletins and updates from Qualcomm to stay informed about patches and fixes for known vulnerabilities.