CVE-2022-21762 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2022-21762, a vulnerability in the apusys driver affecting various MediaTek products running Android 12.0.

Understanding CVE-2022-21762

CVE-2022-21762 is a vulnerability in the apusys driver that could potentially lead to a system crash due to an integer overflow. This vulnerability could be exploited locally to cause denial of service without requiring user interaction.

What is CVE-2022-21762?

The CVE-2022-21762 vulnerability exists in the apusys driver of certain MediaTek products, allowing an attacker to trigger a local denial of service attack without user interaction.

The Impact of CVE-2022-21762

The impact of CVE-2022-21762 includes the possibility of a system crash, local denial of service, and the need for system execution privileges for exploitation.

Technical Details of CVE-2022-21762

The technical details of CVE-2022-21762 include:

Vulnerability Description

The vulnerability is caused by an integer overflow in the apusys driver, which can result in a system crash.

Affected Systems and Versions

The vulnerability affects various MediaTek products including MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT9636, MT9638, and MT9666 running Android 12.0.

Exploitation Mechanism

Exploiting CVE-2022-21762 does not require user interaction and may lead to a local denial of service attack.

Mitigation and Prevention

To mitigate the risk associated with CVE-2022-21762, consider the following steps:

Immediate Steps to Take

Apply the provided patch ID: ALPS06477946 to address the vulnerability.

Long-Term Security Practices

Regularly update the MediaTek products to the latest firmware version to enable security enhancements.

Patching and Updates

Stay informed about security bulletins from MediaTek to apply relevant patches and updates.