CVE-2022-21782 : Vulnerability Insights and Analysis

A vulnerability has been identified in WLAN driver of various MediaTek processors, potentially leading to local escalation of privilege without requiring user interaction.

Understanding CVE-2022-21782

This CVE record discloses details about a security issue in MediaTek processors that could be exploited to gain system execution privileges.

What is CVE-2022-21782?

The vulnerability exists due to a missing bounds check in the WLAN driver of affected MediaTek processors, allowing for an out-of-bounds write. An attacker could leverage this flaw to elevate privileges locally.

The Impact of CVE-2022-21782

The vulnerability poses a risk of local escalation of privilege, enabling an attacker to execute malicious activities with elevated permissions. Notably, no user interaction is necessary for the exploitation of this security flaw.

Technical Details of CVE-2022-21782

This section covers specific technical aspects of the CVE-2022-21782 vulnerability.

Vulnerability Description

The issue arises from a missing bounds check in the WLAN driver, potentially leading to an out-of-bounds write scenario.

Affected Systems and Versions

The vulnerability affects a range of MediaTek processors including MT6761, MT6779, MT6781, and more running Android 11.0 and 12.0.

Exploitation Mechanism

Exploitation of this vulnerability can grant an attacker local escalation of privilege without any user interaction, necessitating immediate attention.

Mitigation and Prevention

To address CVE-2022-21782, stakeholders are advised to implement the following security practices:

Immediate Steps to Take

Apply the provided patch ID (ALPS06704526) to mitigate the vulnerability immediately.

Long-Term Security Practices

Regularly update devices with the latest security patches and firmware to safeguard against emerging threats.

Patching and Updates

Keep all affected systems up to date with software updates from MediaTek to prevent potential exploitation of the vulnerability.