CVE-2023-20735 : What You Need to Know

This article provides detailed information about CVE-2023-20735, including its description, impact, technical details, affected systems, and mitigation steps.

Understanding CVE-2023-20735

CVE-2023-20735 is a security vulnerability identified in MediaTek devices that could potentially lead to a local escalation of privilege without the need for user interaction.

What is CVE-2023-20735?

The vulnerability in the vcu component is caused by a missing bounds check, which could result in an out-of-bounds write. An attacker could exploit this flaw to escalate privileges on the system.

The Impact of CVE-2023-20735

If successfully exploited, CVE-2023-20735 could allow an attacker to elevate their privileges on the affected device, providing them with unauthorized access to sensitive information or unauthorized control over the system.

Technical Details of CVE-2023-20735

The following technical details provide insight into the vulnerability:

Vulnerability Description

The vulnerability in vcu could lead to an out-of-bounds write, allowing an attacker to escalate privileges on the system.

Affected Systems and Versions

The vulnerability affects various MediaTek products such as MT5696, MT6853, MT6877, and many more. The impacted versions include Android 12.0, 13.0, Yocto 4.0, and Iot-Yocto 22.2.

Exploitation Mechanism

Exploiting CVE-2023-20735 does not require any user interaction, making it potentially more dangerous as an attacker could remotely exploit the vulnerability.

Mitigation and Prevention

To mitigate the risk associated with CVE-2023-20735, consider the following steps:

Immediate Steps to Take

Apply the provided patch ID: ALPS07645149 to address the vulnerability promptly.
Monitor for any suspicious activities on the affected devices.

Long-Term Security Practices

Regularly update your devices with the latest security patches and firmware updates.
Implement strong access controls and restrictions to prevent unauthorized access.

Patching and Updates

Ensure that all affected devices are updated with the latest patches provided by MediaTek to address the CVE-2023-20735 vulnerability and other potential security threats.