CVE-2019-2186 Explained : Impact and Mitigation
Learn about CVE-2019-2186, a critical out of bounds write vulnerability in Android versions 7.1.1 to 10. Understand the impact, exploitation, and mitigation steps.
A potential out of bounds write vulnerability has been identified in the GetMBheader function of the combined_decode.cpp file in Android. This vulnerability could lead to remote code execution without requiring additional execution privileges, although user interaction is necessary for exploitation.
Understanding CVE-2019-2186
This CVE affects various versions of Android and has been assigned the Android ID A-136175447.
What is CVE-2019-2186?
In the GetMBheader function of combined_decode.cpp, a missing bounds check may result in an out of bounds write vulnerability. This could potentially allow remote code execution without the need for extra execution privileges, contingent upon user interaction.
The Impact of CVE-2019-2186
The vulnerability poses a risk of remote code execution on affected Android versions.
Technical Details of CVE-2019-2186
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability lies in the GetMBheader function of combined_decode.cpp, allowing for potential out of bounds write actions.
Affected Systems and Versions
- Product: Android
- Affected Versions: Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1, Android-9, Android-10
Exploitation Mechanism
- The absence of a bounds check in the GetMBheader function can be exploited for remote code execution.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent exploitation of this vulnerability.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Educate users about potential risks and the importance of updating their devices.
Long-Term Security Practices
- Regularly update and patch all software and applications on Android devices.
- Implement security best practices to mitigate the risk of similar vulnerabilities.
- Consider using security tools to monitor and detect potential threats.
Patching and Updates
- Stay informed about security bulletins and updates from Android to apply patches as soon as they are released.