CVE-2019-1998 : Security Advisory and Response
Learn about CVE-2019-1998, a vulnerability in Android's keymaster_app.c file leading to resource exhaustion and denial of service attacks. Find mitigation steps and prevention measures here.
Android Keymaster App Resource Exhaustion Vulnerability
Understanding CVE-2019-1998
What is CVE-2019-1998?
The CVE-2019-1998 vulnerability is found in the event_handler function of the keymaster_app.c file in Android, potentially leading to resource exhaustion and a local denial of service attack.
The Impact of CVE-2019-1998
This vulnerability could result in a local denial of service attack that cannot be resolved by a factory reset. It affects Android versions Android-9 and prior.
Technical Details of CVE-2019-1998
Vulnerability Description
The issue arises from a table being lost upon reboot in the event_handler function of keymaster_app.c, causing resource exhaustion.
Affected Systems and Versions
- Product: Android
- Versions: Android-9
Exploitation Mechanism
- Exploiting this vulnerability does not require any user interaction.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Android promptly.
- Monitor official security bulletins for updates.
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 advisories and apply patches as soon as they are available.