CVE-2019-2128 : Security Advisory and Response
Learn about CVE-2019-2128, a local privilege escalation vulnerability in Android ACELP_4t64_fx impacting versions 7.0 to 9. Find out how to mitigate this risk and apply necessary security patches.
Android ACELP_4t64_fx Local Privilege Escalation Vulnerability
Understanding CVE-2019-2128
What is CVE-2019-2128?
ACELP_4t64_fx in c4t64fx.c in Android versions 7.0 to 9 has a vulnerability that could allow local privilege escalation without additional execution privileges, potentially leading to unauthorized access.
The Impact of CVE-2019-2128
This vulnerability could be exploited without user interaction, posing a significant risk of local privilege escalation on affected Android devices.
Technical Details of CVE-2019-2128
Vulnerability Description
The issue lies in ACELP_4t64_fx of c4t64fx.c, where a missing bounds check may result in an out-of-bounds write, enabling attackers to escalate privileges locally.
Affected Systems and Versions
- Product: Android
- Affected Versions: Android-7.0, Android-7.1.1, Android-7.1.2, Android-8.0, Android-8.1, Android-9
Exploitation Mechanism
The vulnerability allows attackers to write outside established bounds in ACELP_4t64_fx, potentially leading to local privilege escalation without requiring additional execution privileges.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Android promptly.
- Monitor official Android security bulletins for updates and advisories.
Long-Term Security Practices
- Regularly update Android devices to the latest software versions.
- Implement security best practices to mitigate the risk of privilege escalation vulnerabilities.
Patching and Updates
It is crucial to install the latest security updates and patches released by Android to address this vulnerability.