CVE-2020-27028 : Security Advisory and Response
Learn about CVE-2020-27028, an Android-11 vulnerability allowing out of bounds read in filter_incoming_event of hci_layer.cc. Find mitigation steps and prevention measures.
Android-11 Out of Bounds Read Vulnerability
Understanding CVE-2020-27028
What is CVE-2020-27028?
CVE-2020-27028 is an out of bounds read vulnerability in Android-11 that exists in the filter_incoming_event function of hci_layer.cc. This flaw could potentially lead to local information disclosure, requiring System execution privileges for exploitation.
The Impact of CVE-2020-27028
This vulnerability could allow an attacker to access sensitive information without the need for user interaction, posing a risk of data exposure.
Technical Details of CVE-2020-27028
Vulnerability Description
The issue arises from a missing bounds check in the filter_incoming_event function of hci_layer.cc, leading to an out of bounds read.
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-11
Exploitation Mechanism
The vulnerability can be exploited by an attacker with System execution privileges, enabling them to disclose local information without user interaction.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor official sources for updates and advisories regarding this vulnerability.
Long-Term Security Practices
- Regularly update and patch all software and systems to prevent exploitation of known vulnerabilities.
- Implement security best practices to mitigate the risk of information disclosure.
Patching and Updates
It is crucial to install the latest security updates and patches released by Android to address CVE-2020-27028.