CVE-2023-20793 : Security Advisory and Response

This CVE record was assigned by MediaTek and was published on August 7, 2023. The vulnerability involves a possible memory corruption in apu due to a missing bounds check. It could result in a local denial of service, requiring System execution privileges but no user interaction for exploitation.

Understanding CVE-2023-20793

This section will delve into the details of CVE-2023-20793, including its nature, impact, technical aspects, and mitigation strategies.

What is CVE-2023-20793?

CVE-2023-20793 pertains to a memory corruption issue in apu, potentially leading to a local denial of service. Attackers could exploit this vulnerability without requiring any user interaction, making it a critical security concern.

The Impact of CVE-2023-20793

The impact of CVE-2023-20793 includes the risk of local denial of service attacks on affected systems. This could disrupt normal system operation and potentially lead to system unavailability or instability.

Technical Details of CVE-2023-20793

In this section, we will explore the technical details of CVE-2023-20793, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in apu is attributed to a missing bounds check, resulting in memory corruption. This can be exploited by malicious actors to trigger a local denial of service condition on vulnerable systems.

Affected Systems and Versions

The following MediaTek products are affected by CVE-2023-20793: MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8183, MT8188, and MT8195. The impacted versions include Android 12.0 and 13.0.

Exploitation Mechanism

Attackers can exploit this vulnerability without user interaction, requiring only System execution privileges. By leveraging the memory corruption issue, they can launch local denial of service attacks on the affected devices.

Mitigation and Prevention

This section outlines the steps to mitigate and prevent the exploitation of CVE-2023-20793, aiming to enhance the security posture of impacted systems.

Immediate Steps to Take

Immediate mitigation steps include applying the provided patch with Patch ID: ALPS07767818 and Issue ID: ALPS07767818. Organizations and users should promptly implement the patch to safeguard their systems against potential attacks exploiting this vulnerability.

Long-Term Security Practices

To bolster long-term security practices, it is advisable to regularly update systems and software, conduct security assessments, and monitor for any unusual system behavior. Instituting secure coding practices and implementing security controls can also help prevent similar vulnerabilities in the future.

Patching and Updates

Ensuring timely installation of security patches and updates is crucial in addressing known vulnerabilities like CVE-2023-20793. Organizations should establish robust patch management processes to promptly apply patches released by vendors and mitigate security risks effectively.