CVE-2021-0902 : Vulnerability Insights and Analysis

This CVE-2021-0902 article provides an overview of a vulnerability that affects various MediaTek processors running Android 10.0, 11.0, and 12.0. The issue involves an out-of-bounds read in apusys, potentially leading to local information disclosure.

Understanding CVE-2021-0902

This section delves into the details of CVE-2021-0902, discussing the vulnerability's impact, affected systems, and mitigation strategies.

What is CVE-2021-0902?

The vulnerability in apusys involves an incorrect bounds check, allowing for a potential out-of-bounds read. Exploiting this could result in local information disclosure, requiring system execution privileges without the need for user interaction.

The Impact of CVE-2021-0902

The impact of this vulnerability is significant as it could lead to local information disclosure, posing a risk to user privacy and data security.

Technical Details of CVE-2021-0902

This section provides in-depth technical insights into the vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability stems from an incorrect bounds check in apusys, enabling an out-of-bounds read that could potentially expose sensitive local information.

Affected Systems and Versions

MediaTek processors such as MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, and MT8797 running Android 10.0, 11.0, and 12.0 are impacted by this vulnerability.

Exploitation Mechanism

Exploiting CVE-2021-0902 requires no user interaction and depends on executing malicious code to trigger the out-of-bounds read within apusys.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks posed by CVE-2021-0902 and prevent potential exploitation.

Immediate Steps to Take

Users and system administrators should apply relevant patches and security updates provided by MediaTek to address this vulnerability promptly.

Long-Term Security Practices

Promoting a proactive approach to cybersecurity, maintaining system hygiene, and staying informed about security advisories can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly updating the affected systems with security patches and following best practices for secure system configuration are essential for safeguarding against CVE-2021-0902.