CVE-2023-36482 : Vulnerability Insights and Analysis

An issue was discovered in Samsung NFC S3NRN4V, S3NSN4V, S3NSEN4, SEN82AB, and S3NRN82. A buffer copy without checking its input size can cause an NFC service restart.

Understanding CVE-2023-36482

This article provides insights into CVE-2023-36482, highlighting the vulnerability found in Samsung NFC devices.

What is CVE-2023-36482?

CVE-2023-36482 refers to an issue in Samsung NFC devices where a buffer copy operation lacking input size verification can lead to an NFC service restart.

The Impact of CVE-2023-36482

The vulnerability can be exploited to cause a denial of service by restarting the NFC service, potentially disrupting normal device functionality.

Technical Details of CVE-2023-36482

This section delves deeper into the technical aspects of CVE-2023-36482, elucidating the vulnerability's description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability arises from a buffer copy operation that does not validate the input size, thereby enabling an attacker to trigger an NFC service restart.

Affected Systems and Versions

Samsung NFC S3NRN4V, S3NSN4V, S3NSEN4, SEN82AB, and S3NRN82 are confirmed to be impacted by this vulnerability.

Exploitation Mechanism

By leveraging the lack of input size validation in the buffer copy operation, threat actors can maliciously restart the NFC service, causing a denial of service condition.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-36482, it is crucial to implement immediate and long-term security measures.

Immediate Steps to Take

Samsung NFC device users should be cautious while interacting with unknown NFC tags or sources.
Keep devices updated with the latest security patches and firmware releases.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Samsung regarding NFC device vulnerabilities.
Employ network segmentation and access controls to limit the impact of potential NFC service restarts.

Patching and Updates

Ensure prompt installation of security updates provided by Samsung to address the CVE-2023-36482 vulnerability and enhance device security.