CVE-2022-26457 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2022-26457, a vulnerability in MediaTek processors that could lead to local escalation of privilege without requiring user interaction.

Understanding CVE-2022-26457

This vulnerability, identified as CVE-2022-26457, affects a range of MediaTek processors and Android versions, potentially allowing an attacker to escalate privileges locally.

What is CVE-2022-26457?

The vulnerability in vow results from a missing bounds check, enabling an out-of-bounds write scenario. Exploitation could lead to the escalation of privileges without the need for user interaction.

The Impact of CVE-2022-26457

An attacker could exploit this vulnerability to gain system execution privileges, facilitating local privilege escalation on affected devices.

Technical Details of CVE-2022-26457

Below are technical details regarding the vulnerability in MediaTek processors:

Vulnerability Description

The vulnerability arises from a missing bounds check in vow, potentially resulting in an out-of-bounds write scenario.

Affected Systems and Versions

The MediaTek processors affected include MT6769, MT6781, MT6785, MT6833, MT6855, MT6877, MT6879, MT6893, MT6983, MT8791, and MT8797 running Android 11.0 and 12.0.

Exploitation Mechanism

Exploiting CVE-2022-26457 does not require user interaction, making it possible for an attacker to locally escalate privileges with ease.

Mitigation and Prevention

To address CVE-2022-26457, consider the following mitigation strategies:

Immediate Steps to Take

Apply the provided patch ID: ALPS07138490 to vulnerable devices.

Long-Term Security Practices

Regularly update devices with the latest security patches from MediaTek.

Patching and Updates

Stay informed about security advisories from MediaTek to ensure timely application of patches.