CVE-2021-30263 : Security Advisory and Response
Understand the impact and technical details of CVE-2021-30263 affecting Qualcomm Snapdragon Compute, Industrial IOT, Mobile, and Voice & Music. Learn how to mitigate and prevent this race condition vulnerability.
Qualcomm, Inc. has reported CVE-2021-30263 impacting Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, and Snapdragon Voice & Music. The vulnerability allows a possible race condition due to a lack of synchronization mechanism when the On-Device Logging node is opened concurrently.
Understanding CVE-2021-30263
This CVE affects various Qualcomm Snapdragon products and can lead to a race condition vulnerability due to synchronization issues with the On-Device Logging node.
What is CVE-2021-30263?
The vulnerability arises from a lack of synchronization mechanism, potentially resulting in a race condition when the On-Device Logging node is accessed simultaneously.
The Impact of CVE-2021-30263
The impact of this vulnerability is rated as medium severity with high confidentiality, integrity, and availability impact. It requires high privileges for exploitation.
Technical Details of CVE-2021-30263
This section covers the specifics of CVE-2021-30263.
Vulnerability Description
The vulnerability allows a race condition to occur when the On-Device Logging node is opened concurrently due to a lack of proper synchronization.
Affected Systems and Versions
Qualcomm Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile, and Snapdragon Voice & Music are affected. Various versions like SD855, SDX55, and more are vulnerable.
Exploitation Mechanism
Exploiting this vulnerability requires high privileges and a specific sequence of actions to trigger the race condition.
Mitigation and Prevention
Understanding how to mitigate and prevent CVE-2021-30263 is crucial.
Immediate Steps to Take
Apply vendor-supplied patches, monitor network traffic for signs of exploitation, and limit access to potentially vulnerable systems.
Long-Term Security Practices
Regularly update systems and software, conduct security training for users, and implement strong access control measures.
Patching and Updates
Stay informed about security bulletins from Qualcomm, apply patches promptly, and follow best practices for system hardening.