CVE-2022-21760 : What You Need to Know

This article provides an overview of CVE-2022-21760, a vulnerability identified in MediaTek devices that could lead to a denial of service attack.

Understanding CVE-2022-21760

CVE-2022-21760 is a security vulnerability discovered in MediaTek devices, specifically in the apusys driver. The vulnerability could result in a system crash due to an integer overflow, potentially enabling a local denial of service attack.

What is CVE-2022-21760?

The CVE-2022-21760 vulnerability occurs in the apusys driver of MediaTek devices, allowing an attacker to trigger a system crash through an integer overflow. This flaw requires system execution privileges but does not necessitate user interaction for exploitation.

The Impact of CVE-2022-21760

The impact of CVE-2022-21760 is significant as it could lead to a local denial of service attack on affected devices running Android 12.0. This exploit could disrupt the normal functioning of the device and negatively impact user experience.

Technical Details of CVE-2022-21760

The technical details of CVE-2022-21760 include a description of the vulnerability, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

In the apusys driver, an integer overflow can trigger a system crash, creating an opportunity for a local denial of service attack. The exploitation of this vulnerability could disrupt device operation and potentially lead to data loss.

Affected Systems and Versions

MediaTek devices running Android 12.0 are susceptible to CVE-2022-21760. The list of affected products includes MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT9636, MT9638, and MT9666.

Exploitation Mechanism

The exploitation of CVE-2022-21760 requires system execution privileges, making it a critical security concern. Attackers can exploit this vulnerability without the need for user interaction, posing a serious threat to device security.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-21760, immediate steps should be taken, along with the implementation of long-term security practices and timely patching and updates.

Immediate Steps to Take

Users are advised to apply security patches provided by MediaTek to address CVE-2022-21760. Additionally, users should remain cautious while downloading and installing apps from untrusted sources.

Long-Term Security Practices

Establishing robust security protocols such as regular security audits, network segmentation, and user training can enhance the overall security posture and protect devices from potential threats.

Patching and Updates

Regularly updating devices with the latest firmware and security patches is essential to prevent exploitation of known vulnerabilities like CVE-2022-21760 and ensure a secure operating environment.