CVE-2021-0473 : Security Advisory and Response

Android devices are impacted by a vulnerability in rw_t3t_process_error of rw_t3t.cc, leading to a possible double free issue due to uninitialized data. This flaw could allow an attacker to achieve remote code execution over NFC without requiring any additional privileges or user interaction.

Understanding CVE-2021-0473

This CVE details a remote code execution vulnerability in Android devices.

What is CVE-2021-0473?

The CVE-2021-0473 vulnerability exists in the handling of data within the rw_t3t_process_error function, potentially resulting in remote code execution via NFC.

The Impact of CVE-2021-0473

The impact of this vulnerability is severe, allowing threat actors to execute malicious code remotely without user interaction.

Technical Details of CVE-2021-0473

This section dives into the technical aspects of CVE-2021-0473.

Vulnerability Description

The vulnerability originates from a double free issue caused by uninitialized data, enabling attackers to exploit it for remote code execution.

Affected Systems and Versions

Android versions 8.1, 9, 10, and 11 are affected by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability requires no user interaction and can be triggered over NFC.

Mitigation and Prevention

Addressing CVE-2021-0473 involves taking immediate steps to secure vulnerable systems and implementing long-term security practices.

Immediate Steps to Take

Update Android devices to the latest security patches and be cautious when handling NFC interactions.

Long-Term Security Practices

Regularly check for security bulletins and apply patches promptly to prevent exploitation of known vulnerabilities.

Patching and Updates

Ensure that Android devices are kept up to date with the latest software updates and security patches.