CVE-2021-25345 : What You Need to Know

This CVE-2021-25345 article provides insights into a vulnerability affecting Samsung Mobile Devices that can result in a kernel panic due to a graphic format mismatch during video format conversion.

Understanding CVE-2021-25345

This section delves into the specifics of the CVE-2021-25345 vulnerability.

What is CVE-2021-25345?

The CVE-2021-25345 vulnerability impacts Samsung Mobile Devices, specifically versions Q(10.0) and R(11.0) prior to SMR Mar-2021 Release 1. It involves a graphic format mismatch during video format conversion in hwcomposer, leading to a kernel panic due to an unsupported format.

The Impact of CVE-2021-25345

This vulnerability has a base score of 4 with a base severity of MEDIUM in CVSS v3.1. With low attack complexity and vector as well as low availability impact, it can lead to a kernel panic on the affected devices.

Technical Details of CVE-2021-25345

Explore the technical aspects of CVE-2021-25345 below.

Vulnerability Description

The vulnerability stems from a buffer copy without checking the input size, specifically a 'Classic Buffer Overflow' scenario.

Affected Systems and Versions

Samsung Mobile Devices running versions Q(10.0) and R(11.0) before SMR Mar-2021 Release 1 are vulnerable to this issue.

Exploitation Mechanism

The vulnerability can be exploited through a graphic format mismatch during video format conversion, causing a kernel panic.

Mitigation and Prevention

Learn how to mitigate the risks posed by CVE-2021-25345 below.

Immediate Steps to Take

Users of affected devices should seek security updates from Samsung Mobile to patch the vulnerability.

Long-Term Security Practices

Implementing secure coding practices and timely software updates can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly apply security patches and updates provided by Samsung Mobile to ensure the protection of your device.