CVE-2019-2215 : What You Need to Know
Learn about CVE-2019-2215, a critical Android vulnerability allowing privilege escalation to the Linux Kernel. Find mitigation steps and long-term security practices here.
Android Binder Use After Free Vulnerability
Understanding CVE-2019-2215
A use-after-free vulnerability in binder.c allows an application to gain elevated privileges within the Linux Kernel, affecting Android devices.
What is CVE-2019-2215?
The vulnerability enables privilege escalation from an application to the Linux Kernel without user interaction, requiring the installation of a malicious local app or a separate network-facing application vulnerability.
The Impact of CVE-2019-2215
- Elevation of Privilege: Attackers can exploit this flaw to gain elevated privileges on affected Android devices.
Technical Details of CVE-2019-2215
Vulnerability Description
The use-after-free vulnerability in binder.c allows an attacker to escalate privileges within the Linux Kernel from an application.
Affected Systems and Versions
- Affected Product: Android
- Affected Version: Kernel
Exploitation Mechanism
- Exploitation does not require user engagement but necessitates the installation of a harmful local application or the presence of an additional vulnerability in a network-facing application.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Avoid downloading apps from untrusted sources.
- Regularly update the device's operating system.
Long-Term Security Practices
- Implement strict app permission policies.
- Use mobile security solutions to detect and prevent such vulnerabilities.
Patching and Updates
- Stay informed about security updates from the device manufacturer.
- Keep the device's software up to date to mitigate known vulnerabilities.