CVE-2021-1955 : What You Need to Know
Learn about CVE-2021-1955, a high-severity denial of service vulnerability in Qualcomm Snapdragon devices. Understand the impact, affected systems, exploitation risks, and mitigation steps.
A denial of service vulnerability has been identified in multiple Qualcomm products due to improper handling of connections when association is rejected. This CVE impacts a wide range of Snapdragon devices across various categories.
Understanding CVE-2021-1955
This section provides insights into the nature and implications of the CVE-2021-1955 vulnerability.
What is CVE-2021-1955?
The vulnerability involves a denial of service scenario triggered by the incorrect management of connections when association is declined in a range of Qualcomm Snapdragon products.
The Impact of CVE-2021-1955
The vulnerability poses a significant risk as it can lead to a denial of service condition in affected devices, impacting their availability and potentially disrupting normal operations.
Technical Details of CVE-2021-1955
In this section, we delve deeper into the technical aspects of the CVE-2021-1955 vulnerability.
Vulnerability Description
The vulnerability arises from inadequate handling of connections when rejection of association occurs in Snapdragon devices, potentially resulting in a denial of service situation.
Affected Systems and Versions
Qualcomm products spanning Snapdragon Auto, Compute, Connectivity, IoT, Mobile, Wearables, and more are impacted by this vulnerability across a wide array of versions.
Exploitation Mechanism
The vulnerability can be exploited through network-based vectors, with a low attack complexity level, and can have a high impact on the availability of the affected systems.
Mitigation and Prevention
This section outlines the steps to mitigate the CVE-2021-1955 vulnerability and prevent exploitation.
Immediate Steps to Take
Users are advised to implement the necessary patches and updates provided by Qualcomm to address the vulnerability promptly.
Long-Term Security Practices
Adopting robust security practices, including network segmentation and access control, can enhance the overall security posture of the affected devices.
Patching and Updates
Regularly check for security bulletins from Qualcomm and apply recommended patches and updates to protect the devices from potential exploitation.