CVE-2021-25455 : What You Need to Know

This CVE-2021-25455 article provides insights into an out-of-bounds read vulnerability in libsaviextractor.so library affecting Samsung Mobile Devices prior to SMR Sep-2021 Release 1.

Understanding CVE-2021-25455

In this section, we will delve into the details of CVE-2021-25455.

What is CVE-2021-25455?

CVE-2021-25455 is an out-of-bounds read vulnerability in libsaviextractor.so library before SMR Sep-2021 Release 1. Attackers can exploit this issue to access arbitrary addresses by using a forged avi file.

The Impact of CVE-2021-25455

With a CVSS base score of 3.3, this low-severity vulnerability requires user interaction and local access. It could lead to data integrity compromise but does not impact confidentiality or availability.

Technical Details of CVE-2021-25455

This section outlines the technical aspects of CVE-2021-25455.

Vulnerability Description

The vulnerability allows attackers to access arbitrary addresses through a pointer manipulation method via a forged avi file.

Affected Systems and Versions

Samsung Mobile Devices running versions O(8.1), P(9.0), Q(10.0), and R(11.0) before SMR Sep-2021 Release 1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability locally, with low complexity, and without requiring privileges.

Mitigation and Prevention

In this section, we will discuss the mitigation strategies for CVE-2021-25455.

Immediate Steps to Take

Users are advised to update their Samsung Mobile Devices to SMR Sep-2021 Release 1 or later to patch the vulnerability. Avoid opening suspicious avi files from untrusted sources to prevent exploitation.

Long-Term Security Practices

Enabling automatic security updates and regularly checking for security patches can help in maintaining a secure device environment.

Patching and Updates

Stay informed about security updates from Samsung Mobile and apply patches promptly to protect your devices from potential threats.