CVE-2022-26466 Explained : Impact and Mitigation

This article provides an overview of CVE-2022-26466, a vulnerability affecting multiple MediaTek processors that could lead to local privilege escalation without user interaction.

Understanding CVE-2022-26466

CVE-2022-26466 is a vulnerability in the audio ipi component of certain MediaTek processors that allows for an out-of-bounds write due to an integer overflow, potentially enabling attackers to escalate privileges locally.

What is CVE-2022-26466?

The vulnerability in audio ipi of MediaTek processors could be exploited to achieve local privilege escalation without the requirement of user interaction. The affected versions include Android 11.0, 12.0, and Yocto 3.1.

The Impact of CVE-2022-26466

If exploited, CVE-2022-26466 could result in attackers gaining system execution privileges, leading to a local elevation of privilege scenario.

Technical Details of CVE-2022-26466

Below are technical details outlining the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from an integer overflow in the audio ipi component of MediaTek processors, allowing malicious actors to trigger an out-of-bounds write.

Affected Systems and Versions

The vulnerability impacts a wide range of MediaTek processors, including MT6779, MT6781, MT6785, and more, running Android 11.0, 12.0, and Yocto 3.1.

Exploitation Mechanism

Exploitation of CVE-2022-26466 does not require user interaction, making it easier for attackers to leverage the vulnerability for local privilege escalation.

Mitigation and Prevention

To safeguard systems from CVE-2022-26466, immediate steps must be taken along with long-term security measures.

Immediate Steps to Take

Applying the provided patch ID: ALPS06558777 is crucial for mitigating the vulnerability and preventing potential exploitation.

Long-Term Security Practices

Employing robust security practices, regularly updating software, and monitoring for any suspicious activities can help prevent security breaches.

Patching and Updates

Regularly checking for and applying security patches from MediaTek for the affected processors is essential to maintain system integrity and security.