CVE-2021-30288 : Security Advisory and Response
Discover the impact of CVE-2021-30288, a stack overflow vulnerability in Qualcomm Snapdragon products, its technical details, affected systems, and mitigation steps to secure your devices.
A possible stack overflow vulnerability exists in multiple Qualcomm Snapdragon products due to improper length checks while copying TLV to a local stack variable.
Understanding CVE-2021-30288
This CVE involves a stack-based buffer overflow issue in WLAN affecting various Snapdragon product lines.
What is CVE-2021-30288?
A stack overflow can occur when copying TLV data to a local stack variable without proper length validation, potentially leading to malicious code execution.
The Impact of CVE-2021-30288
With a CVSS base score of 8.4 and high severity ratings for confidentiality, integrity, and availability, this vulnerability poses a significant risk to affected systems.
Technical Details of CVE-2021-30288
The vulnerability stems from inadequate checks of TLV lengths during the copying process to local stack variables, affecting a wide range of Snapdragon products.
Vulnerability Description
Improper length validation of TLV during copying can result in a stack overflow, enabling threat actors to exploit the system.
Affected Systems and Versions
Qualcomm Snapdragon products across several categories such as Auto, Compute, Connectivity, IoT, Mobile, and more are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting malicious TLV data to trigger a stack overflow, potentially gaining unauthorized access or compromising the system.
Mitigation and Prevention
It is crucial to take immediate steps to address the CVE-2021-30288 vulnerability and enhance overall security measures.
Immediate Steps to Take
System administrators should apply relevant patches released by Qualcomm and follow best security practices to mitigate the risk of exploitation.
Long-Term Security Practices
Regular security audits and updates, network segmentation, and continuous monitoring can help prevent and detect stack-based buffer overflows in the future.
Patching and Updates
Stay informed about security bulletins and updates from Qualcomm to promptly address vulnerabilities like CVE-2021-30288 and safeguard your systems.