CVE-2021-0408 : Security Advisory and Response

A vulnerability has been identified in the Android operating system that could allow local information disclosure without the need for user interaction. This vulnerability affects a wide range of MediaTek processors running Android 10.0 and 11.0.

Understanding CVE-2021-0408

This CVE, assigned to MediaTek processors, specifically targets the Android operating system. The flaw lies in the asf extractor component, leading to an out-of-bounds read vulnerability.

What is CVE-2021-0408?

The CVE-2021-0408 vulnerability in Android's asf extractor results from an improper bounds check, which could be exploited by malicious actors to disclose local information without requiring additional privileges or user interaction.

The Impact of CVE-2021-0408

The potential impact of this vulnerability is the exposure of sensitive local information, posing a risk to user privacy and data security. Attackers could exploit this flaw to access confidential data from the affected devices.

Technical Details of CVE-2021-0408

This section explores the specific technical aspects of the CVE, shedding light on the vulnerability's description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from an incorrect bounds check within the asf extractor component, enabling unauthorized access to local information on vulnerable MediaTek processors.

Affected Systems and Versions

MediaTek processors including MT6570, MT6580, MT6735, and several others are impacted by this vulnerability when running Android 10.0 and 11.0.

Exploitation Mechanism

Exploiting CVE-2021-0408 does not require user interaction, making it a potential target for remote attackers seeking to disclose sensitive information stored on the device.

Mitigation and Prevention

Understanding how to mitigate the risks associated with CVE-2021-0408 is crucial for ensuring the security of affected devices and safeguarding user data.

Immediate Steps to Take

Users are advised to implement security patches provided by MediaTek to address this vulnerability promptly. Regularly updating the device's software can help prevent exploitation of known security flaws.

Long-Term Security Practices

To enhance device security in the long run, users should practice safe browsing habits, refrain from downloading suspicious content, and install reputable security software.

Patching and Updates

Keeping the Android operating system and all related software up to date with the latest security patches is essential to mitigate the risk of exploitation and protect against potential threats.