CVE-2021-35084 : Exploit Details and Defense Strategies
Learn about CVE-2021-35084, a vulnerability in Qualcomm products leading to potential out-of-bound read issues. Understand the impact, affected versions, and mitigation steps.
This article provides detailed information about CVE-2021-35084, a possible out-of-bound read vulnerability affecting various Qualcomm products and versions.
Understanding CVE-2021-35084
CVE-2021-35084 is a vulnerability that could result in a potential out-of-bound read due to a lack of length check for a DIAG event in multiple Qualcomm products.
What is CVE-2021-35084?
The CVE-2021-35084 vulnerability is identified as a possible out-of-bound read issue caused by inadequate length verification for a DIAG event in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, and other related product lines from Qualcomm.
The Impact of CVE-2021-35084
The impact of this vulnerability is rated with a CVSS base score of 5.5, signaling a medium severity level. The exploitation of this vulnerability could lead to a high availability impact on affected systems.
Technical Details of CVE-2021-35084
CVE-2021-35084 involves an out-of-bound read vulnerability in WLAN components of Qualcomm products. The following are the technical details:
Vulnerability Description
The vulnerability arises from a lack of proper length validation for a DIAG event, potentially resulting in an out-of-bound read operation.
Affected Systems and Versions
The vulnerability affects a wide range of Qualcomm products, including Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile, and more. Numerous versions within these product lines are impacted by CVE-2021-35084.
Exploitation Mechanism
The vulnerability can be exploited locally with low privileges required, but could have a significant availability impact if successfully abused.
Mitigation and Prevention
To address CVE-2021-35084, consider the following mitigation strategies:
Immediate Steps to Take
- Apply official patches or updates provided by Qualcomm to mitigate the vulnerability.
- Monitor official communication channels for related security advisories and updates.
Long-Term Security Practices
- Develop and enforce secure coding practices within software development processes.
- Conduct regular security assessments and audits to detect similar vulnerabilities timely.
Patching and Updates
Regularly check for patches and updates released by Qualcomm for the affected products to maintain a secure environment.