CVE-2021-0735 : What You Need to Know

Android containers are at risk due to a vulnerability that allows unauthorized access to information about installed packages. This could result in local information disclosure without the need for user interaction.

Understanding CVE-2021-0735

This CVE identifies a security issue in Android that can lead to information disclosure.

What is CVE-2021-0735?

The vulnerability in PackageManager on Android-13 allows bypassing permission restrictions from Android 11, potentially disclosing installed package details locally.

The Impact of CVE-2021-0735

Exploiting this flaw could enable threat actors to access sensitive information without requiring additional execution privileges, posing a risk of local information disclosure.

Technical Details of CVE-2021-0735

The technical aspects of the vulnerability include:

Vulnerability Description

The security flaw in PackageManager exposes a way to retrieve information about installed packages, disregarding restrictions imposed in Android 11.

Affected Systems and Versions

Android containers running version Android-13 are vulnerable to this issue, allowing for potential information disclosure.

Exploitation Mechanism

Attackers can leverage this vulnerability to access package data without the need for user interaction, leading to local information exposure.

Mitigation and Prevention

To address CVE-2021-0735, consider the following steps:

Immediate Steps to Take

Apply security patches promptly to mitigate the risk of information disclosure.
Monitor for any unauthorized access attempts to sensitive package information.

Long-Term Security Practices

Implement regular security updates to protect against known vulnerabilities.
Review and adjust permission settings to limit unauthorized access to package details.

Patching and Updates

Ensure all Android containers are updated to the latest version to receive security patches that address CVE-2021-0735.