CVE-2021-0442 : Vulnerability Insights and Analysis

This CVE-2021-0442 article provides detailed insight into a vulnerability found in Android-11 that could potentially lead to an elevation of privilege without requiring user interaction.

Understanding CVE-2021-0442

This section delves into the specifics of the CVE-2021-0442 vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-0442?

The vulnerability identified as CVE-2021-0442 is located in the updateInfo of android_hardware_input_InputApplicationHandle.cpp file within Android-11. It poses a risk of control flow manipulation due to a use after free scenario, enabling a local escalation of privilege without the need for additional execution privileges.

The Impact of CVE-2021-0442

The exploitation of CVE-2021-0442 could result in an elevation of privilege, potentially allowing an attacker to gain escalated access rights without the involvement of the user. This security flaw underscores the importance of prompt mitigation measures and proactive security practices.

Technical Details of CVE-2021-0442

In this section, you will find comprehensive technical details about the CVE-2021-0442 vulnerability, including its description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in the updateInfo of android_hardware_input_InputApplicationHandle.cpp file in Android-11 enables an attacker to manipulate the code flow, leading to a use after free scenario that can be exploited for local privilege escalation.

Affected Systems and Versions

The product impacted by this vulnerability is Android, specifically version Android-11. Users operating on this version are susceptible to the risks associated with CVE-2021-0442 and should take immediate action to mitigate its impact.

Exploitation Mechanism

The vulnerability can be exploited locally without the need for any additional execution privileges, highlighting the critical nature of addressing this security flaw promptly.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks posed by CVE-2021-0442 and prevent potential exploitation, emphasizing immediate actions and long-term security practices.

Immediate Steps to Take

Users are advised to apply security patches promptly, limit access to potentially vulnerable systems, and monitor for any suspicious activities that may indicate exploitation attempts.

Long-Term Security Practices

Implementing robust security protocols, conducting regular security assessments, and staying informed about potential vulnerabilities are crucial for maintaining a secure digital environment.

Patching and Updates

Keeping systems up to date with the latest security patches and updates is essential for addressing known vulnerabilities like CVE-2021-0442 and enhancing overall security posture.