CVE-2021-0463 : Security Advisory and Response

This article provides detailed information about CVE-2021-0463, a vulnerability in the Android operating system that could lead to local information disclosure.

Understanding CVE-2021-0463

This section delves into the specifics of the CVE-2021-0463 vulnerability and its potential impact.

What is CVE-2021-0463?

CVE-2021-0463 is a vulnerability within the Android operating system that allows for a possible out-of-bounds read in the convertToHidl function of convert.cpp. This can occur due to uninitialized data from ReturnFrameworkMessage, potentially leading to local information disclosure without requiring additional execution privileges.

The Impact of CVE-2021-0463

The impact of this vulnerability is the potential disclosure of local information, which can pose a risk to user data and privacy. Exploitation of this vulnerability requires user interaction.

Technical Details of CVE-2021-0463

This section provides in-depth technical details regarding the vulnerability, including the affected systems, versions, and exploitation mechanisms.

Vulnerability Description

The vulnerability arises in the convertToHidl function of convert.cpp, leading to an out-of-bounds read due to uninitialized data from ReturnFrameworkMessage.

Affected Systems and Versions

The affected product is Android, specifically the Android kernel.

Exploitation Mechanism

Exploiting CVE-2021-0463 could result in local information disclosure without the need for additional execution privileges. However, user interaction is necessary for successful exploitation.

Mitigation and Prevention

This section outlines steps to mitigate the risks associated with CVE-2021-0463 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to apply the latest security updates and patches provided by the Android platform to address this vulnerability.

Long-Term Security Practices

Implementing strong security practices, such as regular system updates and ensuring user awareness of potential threats, can help prevent security breaches.

Patching and Updates

Regularly check for security bulletins and updates from Android to stay informed about patches and fixes for CVE-2021-0463.