CVE-2021-30337 : Vulnerability Insights and Analysis
Learn about CVE-2021-30337, a high-severity use-after-free vulnerability in Qualcomm Snapdragon products affecting various versions. Follow mitigation steps and update prompts.
This CVE involves a possible use-after-free vulnerability in various Qualcomm Snapdragon products that could be exploited when freeing process shell memory during IOCTL call and process initialization. This could impact a wide range of Qualcomm products including Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, and more.
Understanding CVE-2021-30337
This section provides insight into the nature and scope of CVE-2021-30337.
What is CVE-2021-30337?
The vulnerability involves a potential use-after-free scenario during process shell memory deallocation in specific Qualcomm Snapdragon products. The issue could arise when an IOCTL call is made while the process initialization is underway.
The Impact of CVE-2021-30337
The CVSS v3.1 rating for this vulnerability is 8.4, categorizing it as a high-severity issue with a significant impact on confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2021-30337
This section delves into the technical aspects of CVE-2021-30337.
Vulnerability Description
The vulnerability stems from a use-after-free condition triggered during the freeing of process shell memory, particularly when the process initialization is in progress.
Affected Systems and Versions
Qualcomm products impacted include Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, and many more versions listed by the vendor.
Exploitation Mechanism
The vulnerability could be exploited by an attacker to achieve high impact due to the specific conditions under which the use-after-free scenario occurs.
Mitigation and Prevention
In this section, we discuss the steps to mitigate and prevent exploitation of CVE-2021-30337.
Immediate Steps to Take
Users of affected Qualcomm products should apply relevant security patches provided by the vendor to address this vulnerability promptly.
Long-Term Security Practices
Enhancing overall system security, monitoring for unusual system behavior, and maintaining up-to-date security measures are vital for long-term protection.
Patching and Updates
Regularly checking for security updates from Qualcomm and applying them as soon as they are available is crucial to safeguard systems against potential threats.