CVE-2021-0946 Explained : Impact and Mitigation
Learn about CVE-2021-0946, a vulnerability in Android leading to information disclosure. Discover impact, affected systems, and mitigation steps for enhanced security.
This article provides detailed information about CVE-2021-0946, focusing on the vulnerability found in Android that leads to information disclosure.
Understanding CVE-2021-0946
CVE-2021-0946 is a vulnerability in Android that stems from a method allocating memory on the heap, potentially leaking uninitialized data to userspace.
What is CVE-2021-0946?
The method PVRSRVBridgePMRPDumpSymbolicAddr in Android allocates memory on the heap, which, if the subsequent step fails, could lead to uninitialized data being copied to userspace, causing an information disclosure risk.
The Impact of CVE-2021-0946
This vulnerability could result in a kernel leak of uninitialized heap data without the need for privileges, potentially exposing sensitive information to unauthorized users.
Technical Details of CVE-2021-0946
This section delves into the specifics of the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
The flaw lies in the method allocating memory on the heap in Android, leading to potential leakage of uninitialized data to userspace.
Affected Systems and Versions
The vulnerability impacts Android devices using the Android SoC version.
Exploitation Mechanism
By triggering the specific method in Android, an attacker could exploit the vulnerability to extract sensitive information from the uninitialized memory.
Mitigation and Prevention
Learn about the steps you can take to mitigate the risks posed by CVE-2021-0946 and safeguard your systems.
Immediate Steps to Take
It is crucial to stay informed about security updates from Android and apply patches as soon as they are available to address this vulnerability.
Long-Term Security Practices
Implement robust security measures, such as regular security audits and user permissions management, to enhance the overall security posture of your systems.
Patching and Updates
Regularly check for security bulletins from Android and ensure timely installation of patches and updates to protect your systems against known vulnerabilities.