CVE-2021-35114 : Exploit Details and Defense Strategies
Learn about CVE-2021-35114, a high-severity buffer overflow vulnerability in Snapdragon Auto by Qualcomm, Inc. Impact, affected systems, and mitigation steps included.
This article provides an in-depth analysis of CVE-2021-35114, a high-severity vulnerability impacting Snapdragon Auto by Qualcomm, Inc.
Understanding CVE-2021-35114
CVE-2021-35114 is related to improper buffer initialization on the backend driver, potentially leading to a buffer overflow in Snapdragon Auto.
What is CVE-2021-35114?
The vulnerability stems from a lack of proper buffer initialization in the backend driver of Snapdragon Auto, allowing attackers to trigger a buffer overflow.
The Impact of CVE-2021-35114
With a CVSS base score of 8.4 and high severity ratings for confidentiality, integrity, and availability impacts, CVE-2021-35114 can be exploited by attackers locally without the need for any special privileges.
Technical Details of CVE-2021-35114
This section delves into the specific technical aspects of the CVE-2021-35114 vulnerability.
Vulnerability Description
The vulnerability involves a buffer copy operation in the modem that does not properly validate input sizes, leading to a potential buffer overflow.
Affected Systems and Versions
The affected products include Snapdragon Auto versions SA8540P and SA9000P by Qualcomm, Inc.
Exploitation Mechanism
The vulnerability can be exploited locally with low attack complexity, posing a significant threat to the confidentiality, integrity, and availability of the affected systems.
Mitigation and Prevention
To protect systems against CVE-2021-35114, immediate actions and long-term security practices are crucial.
Immediate Steps to Take
Users are advised to apply the patches provided by Qualcomm, Inc., to address the vulnerability promptly. Additionally, monitoring for any suspicious activities can help detect potential exploitation attempts.
Long-Term Security Practices
Implementing secure coding practices, regular security audits, and staying informed about security updates and patches are essential for maintaining system security.
Patching and Updates
Regularly check for security bulletins and updates from Qualcomm, Inc. to stay abreast of any new developments and patches released to mitigate CVE-2021-35114.