CVE-2022-26455 : What You Need to Know

This article provides detailed information about CVE-2022-26455, a vulnerability discovered in MediaTek devices running Android 12.0, leading to a possible memory corruption and local privilege escalation.

Understanding CVE-2022-26455

CVE-2022-26455 is a security vulnerability affecting MediaTek devices, specifically those running Android 12.0. The vulnerability arises from incorrect error handling in the 'gz' component, potentially resulting in memory corruption.

What is CVE-2022-26455?

The vulnerability in gz component could allow an attacker to locally elevate privileges without requiring user interaction, posing a significant security risk to affected systems.

The Impact of CVE-2022-26455

Exploitation of this vulnerability could lead to local privilege escalation, granting unauthorized access with System execution privileges, putting sensitive data and system integrity at risk.

Technical Details of CVE-2022-26455

Vulnerability Description

The vulnerability is rooted in incorrect error handling within the gz component, which could trigger memory corruption, paving the way for privilege escalation attacks.

Affected Systems and Versions

MediaTek devices powered by MT6789, MT6855, MT6879, MT6895, and MT6983 chipsets running Android 12.0 are impacted by CVE-2022-26455.

Exploitation Mechanism

The vulnerability does not require user interaction for exploitation, making it easier for threat actors to carry out local privilege escalation attacks.

Mitigation and Prevention

Immediate Steps to Take

It is recommended to apply the provided patch ID ALPS07177858 to mitigate the CVE-2022-26455 vulnerability. Users and administrators should prioritize the prompt application of security updates to safeguard devices.

Long-Term Security Practices

To enhance security posture, regular security assessments, employee training on security best practices, and implementing defense-in-depth strategies are crucial to prevent and mitigate similar vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates from MediaTek to ensure timely application of patches and fixes for known vulnerabilities.