CVE-2021-0621 Explained : Impact and Mitigation

A possible out-of-bounds read vulnerability has been identified in the asf extractor of certain MediaTek products which could result in local information disclosure without requiring additional execution privileges.

Understanding CVE-2021-0621

This CVE identifies a security flaw in the asf extractor of multiple MediaTek products, potentially leading to local information disclosure.

What is CVE-2021-0621?

The vulnerability arises from an integer overflow in the asf extractor, allowing an attacker to read out of bounds.

The Impact of CVE-2021-0621

If exploited, this vulnerability could disclose local information without the need for any user interaction, posing a potential security risk.

Technical Details of CVE-2021-0621

This section covers specific technical details related to the CVE.

Vulnerability Description

The vulnerability in the asf extractor could lead to local information disclosure without additional privileges.

Affected Systems and Versions

The vulnerability affects a wide range of MediaTek products running Android 10.0 and 11.0.

Exploitation Mechanism

Exploiting the vulnerability requires no user interaction, potentially allowing unauthorized access to local information.

Mitigation and Prevention

To safeguard against CVE-2021-0621, immediate action and long-term security measures are essential.

Immediate Steps to Take

Users are advised to apply relevant patches provided by MediaTek to mitigate the vulnerability.

Long-Term Security Practices

Employing security best practices, such as regularly updating systems and implementing access controls, can enhance overall security.

Patching and Updates

Stay informed about security updates from MediaTek and promptly apply patches to address known vulnerabilities.