CVE-2023-20796 Explained : Impact and Mitigation

This CVE record was published on August 7, 2023, by MediaTek. It involves a potential memory corruption issue due to an incorrect bounds check in the power component. Exploiting this vulnerability could result in local denial of service, requiring System execution privileges but no user interaction. The patch ID associated with this vulnerability is ALPS07929790.

Understanding CVE-2023-20796

This section delves into the details of CVE-2023-20796 and its implications.

What is CVE-2023-20796?

CVE-2023-20796 highlights a memory corruption vulnerability in the power component that stems from an incorrect bounds check. This flaw can be exploited to achieve local denial of service without the need for user interaction.

The Impact of CVE-2023-20796

The impact of CVE-2023-20796 is significant as it can lead to a local denial of service, potentially disrupting the normal functioning of the affected systems. This vulnerability requires System execution privileges for exploitation.

Technical Details of CVE-2023-20796

Exploring the technical aspects of CVE-2023-20796 to understand its vulnerability and affected systems.

Vulnerability Description

The vulnerability in CVE-2023-20796 arises from a potential memory corruption issue due to an incorrect bounds check in the power component. This flaw can be exploited to cause local denial of service on the affected systems.

Affected Systems and Versions

The products impacted by CVE-2023-20796 include various MediaTek devices such as MT2735, MT2737, MT6789, MT6833, MT6835, and many others. The affected versions encompass Android 12.0, 13.0, OpenWrt 19.07, 21.02, RDK-B 22Q3, and Yocto 2.6, 3.3.

Exploitation Mechanism

Exploiting CVE-2023-20796 does not require user interaction but does necessitate System execution privileges. Attackers can leverage the incorrect bounds check in the power component to trigger local denial of service on vulnerable systems.

Mitigation and Prevention

Understanding how to mitigate and prevent the risks posed by CVE-2023-20796 is crucial for maintaining system security.

Immediate Steps to Take

It is recommended to apply the provided patch ID (ALPS07929790) to address the vulnerability promptly. System administrators should also monitor for any unusual system behavior that might indicate exploitation attempts.

Long-Term Security Practices

Implementing robust security practices, such as regular vulnerability assessments, security training for staff, and network segmentation, can help enhance overall cybersecurity posture and prevent potential threats.

Patching and Updates

Staying up to date with security patches released by MediaTek for the affected products and versions is essential. Timely application of patches and updates can help mitigate the risks associated with CVE-2023-20796 and other vulnerabilities.