CVE-2023-20845 : What You Need to Know

This CVE record was published by MediaTek on September 4, 2023, concerning a vulnerability in imgsys that could lead to local information disclosure with system execution privileges required. The vulnerability requires user interaction for exploitation and is identified with Patch ID ALPS07197795 and Issue ID ALPS07340357.

Understanding CVE-2023-20845

This section will delve into the details surrounding CVE-2023-20845, including what it is, its impact, technical specifics, and mitigation strategies.

What is CVE-2023-20845?

CVE-2023-20845 is a security vulnerability found in imgsys, potentially resulting in an out-of-bounds read due to the absence of valid range checking. This flaw could enable local information disclosure, necessitating system execution privileges for exploitation and user interaction.

The Impact of CVE-2023-20845

The impact of CVE-2023-20845 is significant as it could lead to the exposure of sensitive information on affected systems, posing a threat to data confidentiality and system integrity.

Technical Details of CVE-2023-20845

Within this section, we will explore the technical aspects of CVE-2023-20845, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in imgsys results from a lack of proper range checking, allowing for an out-of-bounds read that could potentially disclose local information.

Affected Systems and Versions

The following MediaTek products are affected by CVE-2023-20845: MT6895, MT6897, MT6983, MT8188, MT8195, and MT8395. The impacted versions include Android 11.0, 12.0, Linux 6.1, IOT-v23.0, and Yocto 4.0.

Exploitation Mechanism

Exploiting CVE-2023-20845 requires user interaction and system execution privileges, making it more challenging for threat actors to capitalize on the vulnerability.

Mitigation and Prevention

In this section, we will discuss the steps to mitigate and prevent the exploitation of CVE-2023-20845, ensuring the security of MediaTek devices and systems.

Immediate Steps to Take

It is crucial to apply the provided patch (Patch ID: ALPS07197795) to address the vulnerability promptly. Additionally, users should exercise caution while interacting with external sources to prevent potential exploitation.

Long-Term Security Practices

To enhance long-term security, organizations using affected MediaTek products should implement robust security measures, such as regular security audits, employee training on cybersecurity best practices, and proactive monitoring for suspicious activities.

Patching and Updates

Regularly check for security updates from MediaTek and promptly apply patches to address known vulnerabilities like CVE-2023-20845. Staying vigilant and proactive in updating systems is essential to safeguard against potential threats.