CVE-2023-20748 : Security Advisory and Response

This CVE-2023-20748 was published on July 4, 2023, by MediaTek. It involves a vulnerability in display that could potentially lead to local information disclosure with System execution privileges required. There is a missing bounds check that may result in an out-of-bounds read, and exploitation does not require user interaction.

Understanding CVE-2023-20748

This section will delve into what CVE-2023-20748 entails, its impact, technical details of the vulnerability, and mitigation practices.

What is CVE-2023-20748?

The vulnerability in CVE-2023-20748 occurs in the display, where a missing bounds check could potentially lead to an out-of-bounds read. This could allow for local information disclosure, requiring System execution privileges for exploitation. No user interaction is needed for an attacker to exploit this vulnerability.

The Impact of CVE-2023-20748

The impact of CVE-2023-20748 is significant as it could potentially result in local information disclosure. This could lead to sensitive data being exposed, posing a threat to the confidentiality of the system.

Technical Details of CVE-2023-20748

This section will provide detailed insights into the vulnerability, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in CVE-2023-20748 arises from a missing bounds check in the display, allowing for an out-of-bounds read. This flaw could be exploited to disclose local information without the need for user interaction.

Affected Systems and Versions

The products impacted by this vulnerability include MediaTek's MT6879, MT6886, MT6895, MT6983, MT6985, MT8673, and MT8781 running Android 12.0 and 13.0 versions.

Exploitation Mechanism

Exploiting CVE-2023-20748 does not require any user interaction. Attackers can take advantage of the missing bounds check in the display to perform an out-of-bounds read and disclose local information.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent exploitation of CVE-2023-20748.

Immediate Steps to Take

Immediate steps to mitigate the risk associated with CVE-2023-20748 include implementing security best practices, restricting access to sensitive information, and monitoring system activity for any suspicious behavior.

Long-Term Security Practices

In the long term, organizations should focus on conducting regular security assessments, staying up-to-date with security patches, educating users about security risks, and establishing incident response protocols.

Patching and Updates

It is crucial to apply the provided patch ID ALPS07536951 to address the vulnerability in display that leads to local information disclosure. Regularly updating systems and software is essential to protect against potential security threats.

By following these mitigation strategies and staying vigilant about security practices, organizations can enhance their defense against vulnerabilities like CVE-2023-20748.