CVE-2019-2126 Explained : Impact and Mitigation
Learn about CVE-2019-2126, a vulnerability in Android's ParseContentEncodingEntry function that could lead to remote code execution. Find out affected versions and mitigation steps.
Android ParseContentEncodingEntry Function Vulnerability
Understanding CVE-2019-2126
This CVE involves a vulnerability in the ParseContentEncodingEntry function in mkvparser.cc, potentially leading to remote code execution on Android devices.
What is CVE-2019-2126?
The vulnerability arises from a pointer not being properly reset after being freed, causing a double free scenario. While exploitation could result in remote code execution, it requires user interaction and does not provide additional execution privileges.
The Impact of CVE-2019-2126
The vulnerability affects various versions of Android, including 7.0, 7.1.1, 7.1.2, 8.0, 8.1, and 9, posing a risk of remote code execution.
Technical Details of CVE-2019-2126
Vulnerability Description
The issue lies in the ParseContentEncodingEntry function in mkvparser.cc, where a freed pointer is not properly reset, leading to a potential double free scenario.
Affected Systems and Versions
- Product: Android
- Versions: Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1, Android-9
Exploitation Mechanism
- Exploitation requires user interaction
- No additional execution privileges are granted
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Android for the affected versions
- Avoid interacting with untrusted or suspicious content
Long-Term Security Practices
- Regularly update Android devices to the latest software versions
- Implement security best practices to mitigate potential vulnerabilities
Patching and Updates
- Stay informed about security bulletins and updates from Android