CVE-2021-30258 : Security Advisory and Response
Learn about CVE-2021-30258, a vulnerability in Qualcomm Snapdragon devices, leading to a possible buffer overflow and its impact. Find out about affected systems, exploitation mechanism, mitigation steps, and long-term prevention measures.
This article discusses the impact, technical details, and mitigation strategies for CVE-2021-30258 affecting Qualcomm Snapdragon devices.
Understanding CVE-2021-30258
Possible buffer overflow due to improper size calculation of payload received in VR service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Wearables.
What is CVE-2021-30258?
CVE-2021-30258 is a vulnerability that can lead to a buffer overflow in various Qualcomm Snapdragon devices, impacting multiple product lines.
The Impact of CVE-2021-30258
The vulnerability has a CVSS base score of 8.4, which indicates a high-risk level. It can result in unauthorized access and potential system compromise.
Technical Details of CVE-2021-30258
The vulnerability is categorized as a stack-based buffer overflow in the VR service on affected Snapdragon devices.
Vulnerability Description
Improper size calculation of payloads received in the VR service can lead to a buffer overflow, potentially allowing attackers to execute arbitrary code or crash the service.
Affected Systems and Versions
Qualcomm Snapdragon devices across various product lines and versions are affected, including Snapdragon Auto, Compute, Connectivity, Consumer IOT, Industrial IOT, and Wearables.
Exploitation Mechanism
Attack vector is local, requires low attack complexity, and no privileges are needed, making it easier for threat actors to exploit the vulnerability.
Mitigation and Prevention
In response to CVE-2021-30258, users should take immediate steps to protect their devices and implement long-term security practices.
Immediate Steps to Take
Users are advised to apply patches and updates provided by Qualcomm to mitigate the vulnerability. Additionally, monitoring for any suspicious activities is recommended.
Long-Term Security Practices
To enhance overall security, users should regularly update their devices, follow best security practices, and be cautious while accessing unknown sources.
Patching and Updates
Regularly check for security bulletins from Qualcomm and apply all relevant patches and updates to ensure devices are protected from known vulnerabilities.