CVE-2021-0895 : What You Need to Know

This article provides details about CVE-2021-0895, a vulnerability affecting certain MediaTek Android devices related to an out-of-bounds write issue in apusys. Read on to understand the impact, technical details, and mitigation steps.

Understanding CVE-2021-0895

This section delves into the specifics of CVE-2021-0895 to help users grasp the severity and implications of this security flaw.

What is CVE-2021-0895?

CVE-2021-0895 involves a missing bounds check in apusys, potentially leading to a local escalation of privilege without the need for user interaction, requiring system execution privileges.

The Impact of CVE-2021-0895

The vulnerability poses a significant risk as it could be exploited for local privilege escalation, potentially compromising system security without user interaction.

Technical Details of CVE-2021-0895

This section provides technical insights into the vulnerability, outlining affected systems, the exploitation mechanism, and more.

Vulnerability Description

The vulnerability arises from a missing bounds check in apusys, exposing MediaTek devices to an out-of-bounds write issue that may allow attackers to escalate privileges.

Affected Systems and Versions

Devices powered by MediaTek processors including MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797 running Android 10.0, 11.0, or 12.0 are impacted by CVE-2021-0895.

Exploitation Mechanism

Exploiting CVE-2021-0895 does not require user interaction, making it possible for threat actors to locally escalate privileges on the affected devices.

Mitigation and Prevention

In this section, discover the necessary steps to mitigate the risks posed by CVE-2021-0895 and enhance the overall security posture of affected systems.

Immediate Steps to Take

Users are advised to apply security patches promptly, specifically Patch ID: ALPS05672107, to address the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Implementing robust security measures, such as regularly updating device software, restricting unnecessary system access, and monitoring for suspicious activities, can bolster long-term defense against security threats.

Patching and Updates

Staying vigilant for security updates from the device manufacturer, particularly related to CVE-2021-0895, is crucial in maintaining the security of MediaTek Android devices.