CVE-2019-2127 : Vulnerability Insights and Analysis
Learn about CVE-2019-2127, a critical Android vulnerability in AudioInputDescriptor.cpp that could lead to local privilege escalation without user interaction. Find out how to mitigate this issue.
Android AudioInputDescriptor.cpp Vulnerability
Understanding CVE-2019-2127
What is CVE-2019-2127?
The CVE-2019-2127 vulnerability is found in the function AudioInputDescriptor::setClientActive in the file AudioInputDescriptor.cpp in Android. It poses a risk of memory corruption due to using freed memory, potentially leading to a local privilege escalation without additional execution privileges.
The Impact of CVE-2019-2127
This vulnerability could allow an attacker to escalate privileges locally on affected Android devices without requiring user interaction.
Technical Details of CVE-2019-2127
Vulnerability Description
The issue arises from a use after free scenario in AudioInputDescriptor::setClientActive, which could result in memory corruption.
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1, Android-9
Exploitation Mechanism
Exploitation of this vulnerability does not require user interaction, making it a critical security concern.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Android promptly.
- Monitor official Android security bulletins for updates.
Long-Term Security Practices
- Regularly update Android devices to the latest software versions.
- Implement security best practices to mitigate privilege escalation risks.
Patching and Updates
Regularly check for and apply security updates and patches released by Android to address CVE-2019-2127.