CVE-2020-0437 : Vulnerability Insights and Analysis
Learn about CVE-2020-0437 impacting Android 8.0 to 11. Understand the denial of service risk in CellBroadcastReceiver's intent handlers and mitigation steps to protect your device.
Android devices running versions 8.0 to 11 are impacted by a denial of service vulnerability in CellBroadcastReceiver's intent handlers. This CVE poses a risk of local denial of service for emergency alerts.
Understanding CVE-2020-0437
The vulnerability in CellBroadcastReceiver's intent handlers could result in a denial of service attack on Android devices without requiring additional execution privileges.
What is CVE-2020-0437?
CellBroadcastReceiver's intent handlers have a missing permission check, allowing for a possible denial of service attack leading to local denial of service for emergency alerts.
The Impact of CVE-2020-0437
The vulnerability presents a risk of local denial of service for emergency alerts on Android devices without the need for user interaction for exploitation.
Technical Details of CVE-2020-0437
Android devices running versions 8.0 to 11 are affected by this denial of service vulnerability in CellBroadcastReceiver's intent handlers.
Vulnerability Description
The missing permission check in CellBroadcastReceiver's intent handlers allows for a denial of service attack on emergency alerts, potentially disrupting critical alerts.
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-8.0, Android-8.1, Android-9, Android-10, Android-11
Exploitation Mechanism
- The vulnerability can be exploited without the need for user interaction.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are essential to mitigate the risks posed by CVE-2020-0437.
Immediate Steps to Take
- Monitor security bulletins and patches from Android for relevant updates.
- Apply vendor patches and updates promptly to address the vulnerability.
- Consider implementing network-based controls to mitigate the risk of exploitation.
Long-Term Security Practices
- Regularly update Android devices to the latest software versions.
- Implement security best practices to safeguard against potential denial of service attacks.
Patching and Updates
- Stay informed about security advisories and update procedures from Android.
- Apply security patches promptly to protect devices from known vulnerabilities.