CVE-2021-0566 Explained : Impact and Mitigation
Learn about CVE-2021-0566, a vulnerability in Android TimeCheck.cpp allowing local information disclosure. Understand the impact, technical details, and mitigation steps.
This CVE-2021-0566 article provides an in-depth analysis of a vulnerability found in the Android operating system's TimeCheck.cpp file, potentially leading to local information disclosure when exploited without user interaction.
Understanding CVE-2021-0566
This section delves into the details of CVE-2021-0566, its impact, technical aspects, and mitigation strategies.
What is CVE-2021-0566?
The vulnerability lies within accessAudioHalPidscpp of TimeCheck.cpp in Android, allowing an out-of-bounds read due to a missing bounds check. Successful exploitation could result in local information disclosure, requiring System execution privileges but no user interaction.
The Impact of CVE-2021-0566
The impact of this vulnerability is the potential disclosure of sensitive information locally, posing a risk to system security and user data confidentiality.
Technical Details of CVE-2021-0566
In this section, we explore the specifics of the vulnerability, affected systems, versions, and how malicious actors can exploit it.
Vulnerability Description
The vulnerability in TimeCheck.cpp exposes Android-11 systems to an out-of-bounds read, allowing attackers to access sensitive information without proper boundary checks in place.
Affected Systems and Versions
Android-11 systems are affected by this vulnerability when using accessAudioHalPidscpp in TimeCheck.cpp.
Exploitation Mechanism
To exploit CVE-2021-0566, attackers could leverage the lack of proper bounds checks in TimeCheck.cpp to read sensitive data without user interaction.
Mitigation and Prevention
This section outlines immediate steps to take and long-term security practices to mitigate the risks associated with CVE-2021-0566.
Immediate Steps to Take
Users and administrators should apply security patches promptly to mitigate the risk of exploitation and prevent unauthorized access to sensitive information.
Long-Term Security Practices
It is recommended to follow secure coding practices, conduct regular security audits, and stay informed about security updates and best practices to enhance overall system security.
Patching and Updates
Regularly update Android systems to the latest patches and versions provided by the vendor to address known vulnerabilities and ensure the security of the environment.