CVE-2021-1001 Explained : Impact and Mitigation

This article provides an overview of CVE-2021-1001, a vulnerability found in Android-12 that could lead to local information disclosure without the need for additional user privileges.

Understanding CVE-2021-1001

CVE-2021-1001 is a vulnerability discovered in PVInitVideoEncoder of mp4enc_api.cpp in Android-12, which could result in a heap buffer overflow leading to potential out-of-bounds read scenarios.

What is CVE-2021-1001?

The vulnerability in PVInitVideoEncoder of mp4enc_api.cpp in Android-12 may allow threat actors to perform a heap buffer overflow, enabling them to read out of bounds, potentially leading to local information disclosure.

The Impact of CVE-2021-1001

The exploitation of this vulnerability could result in local information disclosure without requiring any additional execution privileges or user interaction, posing a risk to the confidentiality of sensitive data on affected systems.

Technical Details of CVE-2021-1001

CVE-2021-1001 affects Android-12 and is categorized as an information disclosure vulnerability.

Vulnerability Description

The issue originates in PVInitVideoEncoder of mp4enc_api.cpp, where a heap buffer overflow could potentially create scenarios for out-of-bounds read, allowing attackers to access sensitive information.

Affected Systems and Versions

The vulnerability impacts systems running Android-12, specifically affecting the product "Android".

Exploitation Mechanism

Threat actors can exploit the vulnerability without the need for any additional user privileges, making it easier for them to perform local information disclosure attacks.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-1001, immediate and long-term security measures need to be implemented.

Immediate Steps to Take

Users are advised to stay updated with security bulletins from Android and apply patches promptly to address the vulnerability.

Long-Term Security Practices

Implementing a robust security posture, keeping systems updated, and conducting regular security audits can help prevent potential information disclosure risks.

Patching and Updates

Users should apply relevant security patches released by Android to address the vulnerability and enhance the security of their systems.