CVE-2023-20795 : What You Need to Know

This CVE record was assigned by MediaTek and published on August 7, 2023. It involves a vulnerability that could lead to local escalation of privilege in certain MediaTek products without requiring user interaction.

Understanding CVE-2023-20795

This section will delve into what CVE-2023-20795 entails, its impact, technical details, and ways to mitigate and prevent the vulnerabilities it presents.

What is CVE-2023-20795?

CVE-2023-20795 is a vulnerability found in MediaTek products, specifically related to the "ril" component. It stems from a missing bounds check, potentially leading to an out-of-bounds write scenario. The exploitation of this vulnerability could result in local escalation of privilege, requiring system execution privileges but not user interaction.

The Impact of CVE-2023-20795

The impact of CVE-2023-20795 is significant as it could allow malicious actors to gain escalated privileges on affected systems, posing a serious security risk. Given that user interaction is not necessary for exploitation, the attack vector is more concerning.

Technical Details of CVE-2023-20795

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

Vulnerability Description

The vulnerability in the "ril" component of MediaTek products arises from a missing bounds check, leading to a potential out-of-bounds write scenario.

Affected Systems and Versions

The products affected by CVE-2023-20795 include a range of MediaTek devices such as MT6739, MT6761, MT6762, and many others. The impacted versions include Android 12.0 and 13.0.

Exploitation Mechanism

The exploitation of CVE-2023-20795 does not require user interaction. Malicious actors can potentially exploit the vulnerability to achieve local escalation of privilege with system execution privileges.

Mitigation and Prevention

In this section, we will discuss immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

It is crucial to apply the provided patch (Patch ID: ALPS07864900; Issue ID: ALPS07864900) as soon as possible to mitigate the risk associated with CVE-2023-20795. Additionally, monitoring system activity for any signs of exploitation is recommended.

Long-Term Security Practices

Implementing robust security measures, such as access control policies, regular security training, and network segmentation, can help enhance the overall security posture and prevent such vulnerabilities in the future.

Patching and Updates

Regularly updating and patching software and firmware is essential to address known vulnerabilities and ensure the security of the system. Stay informed about security bulletins and releases from MediaTek to stay protected against emerging threats like CVE-2023-20795.