CVE-2021-40037 : Vulnerability Insights and Analysis

This CVE-2021-40037 article provides information about a vulnerability in the MPTCP subsystem in smartphones affecting Huawei products.

Understanding CVE-2021-40037

This section delves into the details of the CVE-2021-40037 vulnerability.

What is CVE-2021-40037?

The CVE-2021-40037 vulnerability involves accessing resources using an incompatible type (type confusion) in the MPTCP subsystem in smartphones. Exploiting this vulnerability successfully may lead to system crashes and restarts.

The Impact of CVE-2021-40037

The exploitation of this vulnerability can result in system crashes and subsequent restarts, posing a significant risk to user data, privacy, and device stability.

Technical Details of CVE-2021-40037

In this section, we outline the technical aspects of CVE-2021-40037.

Vulnerability Description

The vulnerability allows attackers to access resources using an incompatible type, specifically within the MPTCP subsystem in smartphones.

Affected Systems and Versions

The following Huawei products and versions are impacted:

EMUI:
Versions affected: 12.0.0, 11.0.1, 11.0.0, 10.1.1, 10.1.0, 10.0.0
Magic UI:
Versions affected: 4.0.0, 3.1.1, 3.1.0, 3.0.0
HarmonyOS:
Versions affected: 2.0

Exploitation Mechanism

Attackers can exploit the vulnerability by manipulating types within the MPTCP subsystem, leading to system instability and potential crashes.

Mitigation and Prevention

This section provides information on mitigating the CVE-2021-40037 vulnerability.

Immediate Steps to Take

Regularly update software and firmware on affected devices.
Monitor vendor security bulletins for patches and updates.

Long-Term Security Practices

Implement network segmentation to contain potential attacks.
Educate users on identifying and reporting suspicious activities.

Patching and Updates

Apply security patches provided by Huawei promptly.