CVE-2021-39754 : Exploit Details and Defense Strategies
Learn about CVE-2021-39754 affecting Android 12L, allowing information disclosure without query permissions. Find mitigation steps & update recommendations.
This CVE-2021-39754 article provides insights into a vulnerability affecting Android 12L that could lead to information disclosure without query permissions.
Understanding CVE-2021-39754
This section delves into the details of the CVE-2021-39754 vulnerability affecting Android 12L.
What is CVE-2021-39754?
CVE-2021-39754 is a vulnerability in ContextImpl that allows determining app installation without proper permissions, resulting in local information disclosure without additional execution privileges.
The Impact of CVE-2021-39754
The vulnerability could lead to local information disclosure in Android 12L without requiring user interaction.
Technical Details of CVE-2021-39754
This section provides technical specifics of the CVE-2021-39754 vulnerability.
Vulnerability Description
In ContextImpl, an issue allows determining app installation status without query permissions, leading to information disclosure.
Affected Systems and Versions
- Product: Android
- Version: Android-12L
Exploitation Mechanism
The vulnerability exploits side-channel information to disclose local information without needing additional execution privileges.
Mitigation and Prevention
Guidelines for addressing the CVE-2021-39754 vulnerability in Android 12L.
Immediate Steps to Take
- Apply patches and security updates promptly.
- Monitor official security bulletins for further instructions.
Long-Term Security Practices
- Regularly update and maintain device software.
- Implement least privilege access controls.
Patching and Updates
It is crucial to install security patches and updates to mitigate the CVE-2021-39754 vulnerability effectively.