CVE-2021-39700 : What You Need to Know

This CVE-2021-39700 article provides details about a logic error in the adbd.te policies on Android, potentially leading to local information disclosure.

Understanding CVE-2021-39700

This section explains the impact, vulnerability description, affected systems, exploitation mechanism, and mitigation steps related to CVE-2021-39700.

What is CVE-2021-39700?

CVE-2021-39700 involves a logic error in adbd.te policies on Android, allowing the CTS Listening Ports Test to report incorrect results, leading to potential local information disclosure without requiring additional execution privileges.

The Impact of CVE-2021-39700

The vulnerability could result in local information disclosure without the need for user interaction on affected Android versions 10, 11, and 12.

Technical Details of CVE-2021-39700

This section provides specific technical details about the CVE-2021-39700 vulnerability.

Vulnerability Description

The logic error in adbd.te policies causes the CTS Listening Ports Test to report inaccurate results, facilitating local information disclosure.

Affected Systems and Versions

Product: Android
Versions Affected: Android-10, Android-11, Android-12

Exploitation Mechanism

The vulnerability does not require user interaction for exploitation, posing a risk of local information disclosure.

Mitigation and Prevention

Learn about the steps to take to mitigate and prevent the CVE-2021-39700 vulnerability.

Immediate Steps to Take

Update affected Android devices to the latest available security patches.
Monitor official Android security bulletins for updates and remediation instructions.

Long-Term Security Practices

Regularly update and patch Android devices to address security vulnerabilities.
Conduct thorough security assessments and tests to identify and remediate potential risks.

Patching and Updates

Stay informed about security patches and updates released by Android to address CVE-2021-39700 and other vulnerabilities.