CVE-2023-20666 Explained : Impact and Mitigation

This CVE record was published by MediaTek on April 6, 2023. It involves a vulnerability related to display drm that could potentially lead to local escalation of privilege without the need for user interaction. The vulnerability requires system execution privileges for exploitation.

Understanding CVE-2023-20666

This section will delve deeper into the details of CVE-2023-20666, focusing on its impact and technical aspects.

What is CVE-2023-20666?

CVE-2023-20666 is a vulnerability in display drm that results from a missing bounds check. The absence of this check could allow for an out-of-bounds write, ultimately leading to a local escalation of privilege. Notably, the exploitation of this vulnerability does not require any user interaction.

The Impact of CVE-2023-20666

The impact of CVE-2023-20666 is significant as it could potentially enable attackers to elevate their privileges locally. This may facilitate unauthorized access to sensitive system resources and data, posing a serious security risk.

Technical Details of CVE-2023-20666

In this section, we will explore the technical intricacies of CVE-2023-20666, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in display drm stems from a lack of bounds checking, allowing for an out-of-bounds write operation. This weakness can be leveraged by attackers to escalate their privileges locally.

Affected Systems and Versions

The following MediaTek products are affected by CVE-2023-20666:

MT6789
MT6855
MT6895
MT6983
MT8188
MT8195
MT8365
MT8781
MT8795T
MT8798

These products are impacted when running Android versions 12.0 and 13.0.

Exploitation Mechanism

The exploitation of CVE-2023-20666 does not require user interaction. By leveraging the vulnerability in display drm, attackers can execute an out-of-bounds write operation and potentially escalate their privileges locally.

Mitigation and Prevention

This section focuses on the steps that can be taken to mitigate the risks associated with CVE-2023-20666 and prevent potential exploitation.

Immediate Steps to Take

To address CVE-2023-20666, it is crucial to apply the provided patch, identified as Patch ID: ALPS07310651; Issue ID: ALPS07292173. Implementing this patch can help remediate the vulnerability and reduce the risk of privilege escalation.

Long-Term Security Practices

In the long term, organizations should prioritize proactive security measures, such as regular security audits, vulnerability assessments, and adherence to secure coding practices. By establishing a robust security posture, the likelihood of similar vulnerabilities surfacing can be minimized.

Patching and Updates

Regularly updating systems and software, including applying security patches released by vendors like MediaTek, is essential to address known vulnerabilities promptly. Stay informed about security bulletins and recommendations to protect your systems from potential threats.