CVE-2023-20675 : What You Need to Know

This CVE record was published on April 6, 2023, by MediaTek. It involves an out-of-bounds read vulnerability in the wlan component, potentially leading to local information disclosure with System execution privileges but no user interaction required for exploitation.

Understanding CVE-2023-20675

This section delves into the details of CVE-2023-20675, highlighting its impact, technical aspects, and mitigation strategies.

What is CVE-2023-20675?

CVE-2023-20675 is a vulnerability in the wlan component that could allow an attacker to read data outside of the bounds of allocated memory. This could result in the disclosure of sensitive information stored in the system.

The Impact of CVE-2023-20675

The impact of this vulnerability is significant as it could potentially lead to the exposure of sensitive data on the affected systems. Attackers could exploit this flaw to gain unauthorized access to confidential information without requiring any user interaction.

Technical Details of CVE-2023-20675

This section provides a deeper look into the technical aspects of CVE-2023-20675, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in the wlan component is due to a missing bounds check, allowing for an out-of-bounds read operation. This can be exploited by attackers to access sensitive information in the system.

Affected Systems and Versions

The vulnerability impacts a range of MediaTek products including MT5221, MT6781, MT6789, MT6833, and others. Specifically, systems running Android 11.0, 12.0, 13.0, Yocto 3.1, 3.3, 4.0, and Linux-4.19 with certain chipsets are vulnerable to this issue.

Exploitation Mechanism

Exploiting CVE-2023-20675 does not require user interaction. Attackers with System execution privileges can leverage this vulnerability to perform an out-of-bounds read and potentially disclose sensitive information on the affected systems.

Mitigation and Prevention

To address CVE-2023-20675 and enhance security measures, immediate steps, long-term security practices, and the importance of patching and updates should be considered.

Immediate Steps to Take

Organizations using the affected MediaTek products should apply the provided patch (Patch ID: ALPS07588569) to mitigate the vulnerability. Additionally, monitoring for any unusual activities or information disclosure incidents is recommended.

Long-Term Security Practices

In the long run, implementing robust security measures, conducting regular security assessments, and staying informed about potential vulnerabilities in products can help prevent similar issues in the future.

Patching and Updates

Regularly updating software and firmware with security patches from vendors like MediaTek is crucial in maintaining a secure environment. Organizations should stay informed about security advisories and promptly apply relevant patches to protect against potential exploits.