CVE-2021-0620 : What You Need to Know

A possible out-of-bounds read vulnerability has been discovered in the asf extractor affecting various MediaTek product versions. The vulnerability could lead to local information disclosure without the need for additional privileges or user interaction.

Understanding CVE-2021-0620

This CVE-2021-0620 vulnerability pertains to an out-of-bounds read due to a heap buffer overflow in the asf extractor, with potential consequences for user data privacy and confidentiality.

What is CVE-2021-0620?

The CVE-2021-0620 security flaw involves a heap buffer overflow within the asf extractor, which could enable malicious actors to extract local information without requiring extra execution permissions. The Patch ID for this vulnerability is ALPS05489178.

The Impact of CVE-2021-0620

The impact of this vulnerability includes local information disclosure, posing a significant risk to user data privacy. With no additional execution privileges needed for exploitation, it can lead to serious data breaches.

Technical Details of CVE-2021-0620

The technical details of CVE-2021-0620 outline the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability arises from an out-of-bounds read due to a heap buffer overflow in the asf extractor, potentially resulting in local information disclosure.

Affected Systems and Versions

Multiple MediaTek product versions are affected by this vulnerability, specifically those running Android 10.0 and 11.0.

Exploitation Mechanism

Malicious actors can exploit this vulnerability to extract local information without the need for user interaction or additional execution privileges.

Mitigation and Prevention

In response to CVE-2021-0620, it is crucial to take immediate steps, adopt long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Immediate steps to mitigate the risk associated with CVE-2021-0620 include applying relevant patches, monitoring for any unusual activities, and restricting unnecessary access.

Long-Term Security Practices

Implementing robust security measures, conducting regular security assessments, and enhancing user awareness can contribute to long-term protection against such vulnerabilities.

Patching and Updates

Regularly updating systems and applying security patches provided by MediaTek can help address vulnerabilities like CVE-2021-0620 effectively.