CVE-2022-20078 : Security Advisory and Response

In vow, there is a possible memory corruption due to a race condition, leading to local escalation of privilege without the need for user interaction. This vulnerability affects MediaTek devices running Android 11.0 and 12.0.

Understanding CVE-2022-20078

This CVE involves a memory corruption vulnerability in MediaTek devices that could allow attackers to escalate privileges locally.

What is CVE-2022-20078?

The CVE-2022-20078 vulnerability in MediaTek devices running Android 11.0 and 12.0 arises from a race condition in the vow component.

The Impact of CVE-2022-20078

This vulnerability may lead to local escalation of privilege, enabling attackers to execute malicious activities with elevated system privileges.

Technical Details of CVE-2022-20078

Below are the technical details regarding this CVE.

Vulnerability Description

The vulnerability is attributed to a race condition in vow, resulting in potential memory corruption.

Affected Systems and Versions

MediaTek devices, including MT6833, MT6853, MT6853T, MT6873, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8791, and MT8797, running Android 11.0 and 12.0 are impacted by this vulnerability.

Exploitation Mechanism

The exploitation of CVE-2022-20078 does not require user interaction and can be leveraged to escalate privileges locally.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-20078, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Users are advised to apply the provided patch ID: ALPS05852819 to remediate the memory corruption vulnerability.

Long-Term Security Practices

Regularly update the device's software and security patches to protect against potential exploitation of vulnerabilities.