CVE-2020-0392 : Vulnerability Insights and Analysis
Learn about CVE-2020-0392, a critical Android vulnerability allowing local escalation of privilege without additional execution rights. Follow mitigation steps and patching recommendations.
Android vulnerability that could lead to an elevation of privilege due to a double-free scenario in SurfaceFlinger.cpp.
Understanding CVE-2020-0392
What is CVE-2020-0392?
In getLayerDebugInfo of SurfaceFlinger.cpp, a potential code execution vulnerability exists, resulting from a double-free. This flaw may allow local users to escalate privileges without requiring additional execution rights.
The Impact of CVE-2020-0392
The vulnerability could lead to local elevation of privilege without the need for user interaction.
Technical Details of CVE-2020-0392
Vulnerability Description
- An issue in getLayerDebugInfo of SurfaceFlinger.cpp may lead to code execution due to a double free.
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-9, Android-10, Android-11
Exploitation Mechanism
The exploit could result in local escalation of privilege without the need for additional execution privileges.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security updates from the official Android source.
- Monitor vendor or device manufacturer notifications for patches.
- Ensure strict access control policies on critical systems.
Long-Term Security Practices
- Regularly update all software and firmware on devices.
- Implement security best practices, such as least privilege access.
Patching and Updates
- Patch and update the affected Android versions to eliminate the vulnerability.