CVE-2021-0870 : What You Need to Know

Android devices running on versions Android-9, Android-10, Android-11, and Android-8.1 are impacted by CVE-2021-0870. The vulnerability, assigned to the problem type 'Remote Code Execution', exists in RW_SetActivatedTagType of rw_main.cc. It is due to a race condition that may result in memory corruption, potentially leading to remote code execution without additional privileges.

Understanding CVE-2021-0870

This section provides an overview of the critical details regarding CVE-2021-0870.

What is CVE-2021-0870?

The vulnerability in RW_SetActivatedTagType of rw_main.cc poses a risk of memory corruption due to a race condition. As a consequence, threat actors could exploit this flaw to achieve remote code execution, requiring no extra execution privileges, and without any user interaction.

The Impact of CVE-2021-0870

The impact of the CVE-2021-0870 vulnerability is severe as it allows for potential remote code execution on affected Android devices running versions Android-9, Android-10, Android-11, and Android-8.1.

Technical Details of CVE-2021-0870

In this section, we delve into the technical aspects of CVE-2021-0870.

Vulnerability Description

The vulnerability arises from a race condition in RW_SetActivatedTagType of rw_main.cc, leading to memory corruption and the possibility of remote code execution on vulnerable Android devices.

Affected Systems and Versions

Android devices operating on versions Android-9, Android-10, Android-11, and Android-8.1 are affected by CVE-2021-0870 and are vulnerable to potential exploitation.

Exploitation Mechanism

Threat actors could exploit the race condition in RW_SetActivatedTagType of rw_main.cc to corrupt memory, enabling them to execute remote code without requiring additional privileges or user interaction.

Mitigation and Prevention

To safeguard against CVE-2021-0870, users and organizations must take immediate and long-term security measures.

Immediate Steps to Take

Promptly apply security patches and updates provided by Android to mitigate the risk of exploitation through CVE-2021-0870.

Long-Term Security Practices

Implement robust security practices, such as regular security audits, network segmentation, and employee training, to enhance overall cybersecurity posture.

Patching and Updates

Regularly monitor for security updates from Android and promptly install patches to address vulnerabilities like CVE-2021-0870.