CVE-2021-25395 : What You Need to Know

A race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows local attackers to bypass signature check given a compromised radio privilege.

Understanding CVE-2021-25395

This CVE affects Samsung Mobile Devices and poses a significant risk due to a race condition vulnerability.

What is CVE-2021-25395?

The vulnerability presents a race condition in the MFC charger driver, enabling local attackers to evade signature checks when a radio privilege is compromised.

The Impact of CVE-2021-25395

With a CVSS base score of 6.4, this vulnerability has a medium severity level affecting confidentiality, integrity, and availability of Samsung Mobile Devices running specific versions.

Technical Details of CVE-2021-25395

This section covers the technical aspects such as vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

CVE-2021-25395 exposes a race condition in the MFC charger driver, allowing attackers to bypass signature checks under compromised radio privilege conditions.

Affected Systems and Versions

Samsung Mobile Devices running versions O(8.x), P(9.0), Q(10.0), R(11.0) prior to SMR MAY-2021 Release 1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers with local access can exploit this vulnerability to circumvent signature checks and potentially compromise the security of the devices.

Mitigation and Prevention

In this section, we discuss the immediate steps to take and long-term security practices to prevent such vulnerabilities from being exploited.

Immediate Steps to Take

Users are advised to update their Samsung Mobile Devices to the latest SMR MAY-2021 Release 1 or apply relevant security patches to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing proper access controls, regular security updates, and monitoring for unusual activities can enhance the overall security posture of the devices.

Patching and Updates

Regularly check for security updates from Samsung Mobile and apply patches promptly to address known vulnerabilities and safeguard against potential threats.