Learn about CVE-2021-30342, a critical vulnerability in Qualcomm Snapdragon products leading to a race condition between tasks PDCP and RRC. Understand the impact, affected systems, and mitigation steps.
This article discusses a critical vulnerability in Qualcomm products that could lead to a race condition between tasks PDCP and RRC.
Understanding CVE-2021-30342
A vulnerability exists in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables that could be exploited due to improper integrity checks.
What is CVE-2021-30342?
The vulnerability arises from a race condition between tasks PDCP and RRC after a valid RRC Command packet is received in Qualcomm Snapdragon products.
The Impact of CVE-2021-30342
The CVSS base score for this vulnerability is 9.1, categorizing it as a critical issue with high impacts on confidentiality and integrity.
Technical Details of CVE-2021-30342
This section covers the specific technical aspects of the vulnerability.
Vulnerability Description
The flaw allows for a time-of-check time-of-use race condition in the modem of affected Qualcomm products.
Affected Systems and Versions
Multiple versions of Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability could be exploited due to a lack of proper integrity checks, leading to a race condition between tasks PDCP and RRC.
Mitigation and Prevention
To address CVE-2021-30342, immediate steps and long-term security practices should be considered.
Immediate Steps to Take
Users should apply patches or updates provided by Qualcomm to mitigate the vulnerability.
Long-Term Security Practices
Implementing robust integrity checks and monitoring mechanisms can enhance the security posture against similar vulnerabilities.
Patching and Updates
Regularly check for security bulletins and updates from Qualcomm to stay protected against known vulnerabilities.