CVE-2021-0622 : Vulnerability Insights and Analysis

Android devices using certain MediaTek processors are affected by a vulnerability that could lead to local information disclosure. Find out more about CVE-2021-0622 below.

Understanding CVE-2021-0622

This CVE ID refers to an out-of-bounds read vulnerability in the asf extractor of Android devices using specific MediaTek processors. The issue arises from a heap buffer overflow, potentially enabling local information disclosure.

What is CVE-2021-0622?

The vulnerability in the asf extractor could allow an attacker to read outside the bounds of allocated memory, leading to leaking sensitive information stored in the device's memory without requiring additional permissions.

The Impact of CVE-2021-0622

The impact of this vulnerability is significant as it could result in local information disclosure, putting user data at risk without the need for user interaction for exploitation.

Technical Details of CVE-2021-0622

The following technical details shed light on the affected systems, versions, and exploitation mechanisms.

Vulnerability Description

The vulnerability involves a heap buffer overflow in the asf extractor of Android devices utilizing MediaTek processors, potentially allowing unauthorized access to sensitive information.

Affected Systems and Versions

Devices running the affected versions of Android such as 10.0 and 11.0 and equipped with specific MediaTek processors are vulnerable to CVE-2021-0622.

Exploitation Mechanism

Exploiting this vulnerability does not require any user interaction, making it easier for threat actors to leverage the security flaw for local information disclosure.

Mitigation and Prevention

To protect your device and data from potential exploitation of CVE-2021-0622, consider the following mitigation strategies:

Immediate Steps to Take

Apply security patches provided by MediaTek to address the vulnerability promptly.

Long-Term Security Practices

Regularly update your device's operating system to the latest version to ensure security patches for known vulnerabilities.
Exercise caution while downloading and installing applications or files from untrusted sources.

Patching and Updates

Stay informed about security bulletins and updates released by MediaTek for your device model and apply them as soon as they are available to mitigate security risks effectively.