CVE-2023-40218 : Security Advisory and Response
Learn about CVE-2023-40218, an integer overflow flaw in Samsung Exynos Mobile Processors, impacting models 9820, 980, and more. Understand the implications, affected systems, and mitigation steps.
An integer overflow vulnerability has been identified in the NPU kernel driver in Samsung Exynos Mobile Processors, potentially allowing bypass of error case detection.
Understanding CVE-2023-40218
This section provides an overview of the CVE-2023-40218 vulnerability affecting Samsung Exynos Mobile Processors.
What is CVE-2023-40218?
The CVE-2023-40218 vulnerability resides in the NPU kernel driver of Samsung Exynos Mobile Processors, including models 9820, 980, 2100, 2200, 1280, and 1380. The flaw allows an attacker to craft a malicious application, triggering an integer overflow that can evade the detection of error cases.
The Impact of CVE-2023-40218
As a low-severity vulnerability with a base score of 2, CVE-2023-40218 poses a threat to the availability of the affected systems. An attacker with high privileges can exploit this issue locally, requiring user interaction to trigger the vulnerability.
Technical Details of CVE-2023-40218
Delve into the technical aspects of the CVE-2023-40218 vulnerability to understand its implications and scope.
Vulnerability Description
The vulnerability stems from an integer overflow in the NPU kernel driver, facilitating the evasion of error case detection through specially crafted applications.
Affected Systems and Versions
Samsung Exynos Mobile Processors, versions 9820, 980, 2100, 2200, 1280, and 1380, are impacted by this vulnerability.
Exploitation Mechanism
Malicious actors can exploit CVE-2023-40218 by leveraging high privileges and crafting a specific application to trigger the integer overflow, leading to a potential bypass of error case detection.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2023-40218 and secure affected systems.
Immediate Steps to Take
Users are advised to apply security updates provided by Samsung to address the CVE-2023-40218 vulnerability. It is crucial to ensure timely patching to prevent exploitation.
Long-Term Security Practices
Implementing secure coding practices and monitoring for unusual application behavior can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly check for security updates from Samsung and promptly install patches to safeguard systems against potential threats.