CVE-2021-25394 : Exploit Details and Defense Strategies

A detailed overview of the CVE-2021-25394 vulnerability affecting Samsung Mobile Devices.

Understanding CVE-2021-25394

This CVE pertains to a use after free vulnerability via a race condition in the MFC charger driver prior to SMR MAY-2021 Release 1.

What is CVE-2021-25394?

The vulnerability allows arbitrary write operations when a radio privilege is compromised.

The Impact of CVE-2021-25394

With a CVSS base score of 6.4 and high impacts on availability, confidentiality, and integrity, this vulnerability poses a medium security risk.

Technical Details of CVE-2021-25394

This section provides insight into the vulnerability's description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises due to a use after free issue triggered by a race condition in the MFC charger driver.

Affected Systems and Versions

Samsung Mobile Devices with versions O(8.x), P(9.0), Q(10.0), R(11.0) are impacted, specifically those running versions earlier than SMR MAY-2021 Release 1.

Exploitation Mechanism

The vulnerability allows for arbitrary write actions by exploiting a race condition when a radio privilege is compromised.

Mitigation and Prevention

Learn about the steps to mitigate and prevent exploitation of CVE-2021-25394.

Immediate Steps to Take

Users are advised to update their Samsung Mobile Devices to SMR MAY-2021 Release 1 or newer to mitigate the vulnerability.

Long-Term Security Practices

Regularly update devices, maintain a secure environment, and follow security best practices to enhance long-term security.

Patching and Updates

Stay informed about security updates and promptly apply patches provided by Samsung Mobile.