CVE-2021-35086 Explained : Impact and Mitigation
Discover the details of CVE-2021-35086 affecting Snapdragon products by Qualcomm. Learn about the impact, affected systems, and mitigation strategies to secure your devices.
A vulnerability has been identified in Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile by Qualcomm, Inc. This CVE involves a possible buffer over-read due to improper validation of SIB type when processing a NR system Information message.
Understanding CVE-2021-35086
This section will cover what CVE-2021-35086 entails, its impact, technical details, and mitigation strategies.
What is CVE-2021-35086?
The CVE-2021-35086 vulnerability pertains to a potential buffer over-read. The issue arises from the improper handling of SIB type validation during the processing of a NR system Information message within Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile products.
The Impact of CVE-2021-35086
The impact of this vulnerability is deemed high, with a CVSSv3.1 base score of 7.5. The attack complexity is low, leveraging network accessibility with a significant potential availability impact.
Technical Details of CVE-2021-35086
Let's delve into the technical aspects of CVE-2021-35086 to understand the vulnerability further.
Vulnerability Description
The vulnerability exposes devices to a buffer over-read risk, potentially leading to unauthorized access or disruption of services.
Affected Systems and Versions
Qualcomm's Snapdragon Auto, Compute, Connectivity, Industrial IOT, and Mobile products are impacted. Numerous versions including AR8035, QCA6390, QCA6421, SDX55, SD865 5G, and more are vulnerable.
Exploitation Mechanism
The vulnerability can be exploited by attackers through network vectors without requiring privileges, potentially resulting in high availability impact.
Mitigation and Prevention
Understanding how to mitigate and prevent CVE-2021-35086 is crucial for maintaining system security.
Immediate Steps to Take
Immediate mitigation involves updating affected systems with patches provided by Qualcomm.
Long-Term Security Practices
Implementing strict security protocols, network segmentation, and regular security audits can enhance long-term resilience.
Patching and Updates
Regularly monitor Qualcomm's security bulletins for patches addressing CVE-2021-35086 to ensure systems are safeguarded against potential exploits.