CVE-2021-1960 : What You Need to Know
Learn about CVE-2021-1960 affecting Qualcomm Snapdragon processors, leading to uncontrolled resource consumption due to mishandling of broadcast packets. Explore impact, technical details, and mitigation steps.
A vulnerability in Snapdragon processors can lead to uncontrolled resource consumption due to improper handling of certain broadcast packets, impacting various Qualcomm products.
Understanding CVE-2021-1960
This CVE relates to a security flaw in Qualcomm's Snapdragon processors that can result in resource exhaustion through specific broadcast packets.
What is CVE-2021-1960?
The vulnerability arises from the mishandling of ASB-C broadcast packets with a crafted opcode in LMP protocol, potentially causing uncontrolled resource consumption across multiple Snapdragon product lines.
The Impact of CVE-2021-1960
The vulnerability poses a medium-level risk with a CVSS base score of 6.5, affecting a wide range of Qualcomm products, including Snapdragon Auto, Compute, Mobile, and Wired Infrastructure, among others.
Technical Details of CVE-2021-1960
This section delves into the specific technical aspects of the CVE.
Vulnerability Description
The flaw results from improper input validation in Bluetooth, allowing attackers to manipulate broadcast packets leading to resource exhaustion.
Affected Systems and Versions
Qualcomm products like Snapdragon Auto, Compute, Mobile, and others are impacted across multiple versions including AR8031, QCA2066, SD690 5G, and more.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending malicious ASB-C broadcast packets with a crafted opcode, triggering uncontrolled resource consumption within the affected Qualcomm products.
Mitigation and Prevention
To address CVE-2021-1960, immediate actions and long-term security practices are recommended.
Immediate Steps to Take
Users are advised to apply relevant security patches provided by Qualcomm promptly to mitigate the risk of resource exhaustion.
Long-Term Security Practices
Maintaining up-to-date software, monitoring for suspicious activities, and implementing network segmentation can help bolster the overall security posture.
Patching and Updates
Regularly check for security bulletins from Qualcomm and ensure timely installation of patches to safeguard against known vulnerabilities affecting Snapdragon processors.