CVE-2020-0368 : Security Advisory and Response
Learn about CVE-2020-0368, a vulnerability in Android-11 that allows local information disclosure. Find out how to mitigate and prevent unauthorized access to voicemail metadata.
CVE-2020-0368 is a vulnerability in Android-11 that could result in local information disclosure due to a permission bypass in CallLogProvider.java.
Understanding CVE-2020-0368
What is CVE-2020-0368?
CVE-2020-0368 involves improper input validation in queryInternal of CallLogProvider.java, potentially leading to local information disclosure of voicemail metadata in Android-11 without the need for user interaction.
The Impact of CVE-2020-0368
This vulnerability could allow unauthorized access to voicemail metadata, posing a risk of local information disclosure.
Technical Details of CVE-2020-0368
Vulnerability Description
- Improper input validation in queryInternal of CallLogProvider.java
- Permission bypass leading to local information disclosure of voicemail metadata
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-11
Exploitation Mechanism
- Requires User execution privileges
- User interaction is not needed for exploitation
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Android promptly
- Monitor for any unauthorized access to voicemail metadata
Long-Term Security Practices
- Regularly update Android devices to the latest versions
- Implement least privilege access control policies
Patching and Updates
- Update to the latest Android-11 version