CVE-2021-22391 Explained : Impact and Mitigation

This CVE-2021-22391 article provides an in-depth understanding of a vulnerability in Huawei smartphones due to an Incorrect Calculation of Buffer Size.

Understanding CVE-2021-22391

CVE-2021-22391 is a vulnerability in Huawei smartphones that may lead to system resets when exploited.

What is CVE-2021-22391?

CVE-2021-22391 involves an Incorrect Calculation of Buffer Size in Huawei smartphones, which can be exploited to cause system resets.

The Impact of CVE-2021-22391

The successful exploitation of this vulnerability can result in the system resetting, potentially causing disruption and data loss.

Technical Details of CVE-2021-22391

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability stems from an Incorrect Calculation of Buffer Size in Huawei smartphones, allowing malicious actors to trigger system resets.

Affected Systems and Versions

Products like EMUI and Magic UI by Huawei are affected. Versions such as EMUI 11.0.0, 10.1.1, 10.1.0, 10.0.0, 9.1.1, 9.1.0, and Magic UI 4.0.0, 3.1.1, 3.1.0, 3.0.0, 2.1.1 are vulnerable.

Exploitation Mechanism

The vulnerability can be exploited by manipulating the buffer size calculation, leading to system resets.

Mitigation and Prevention

Learn how to address and prevent the CVE-2021-22391 vulnerability.

Immediate Steps to Take

Users should apply security patches and updates provided by Huawei promptly.

Long-Term Security Practices

Implement strong security measures such as using reputable apps and avoiding suspicious links to enhance device security.

Patching and Updates

Regularly check for and apply software updates and patches released by Huawei to mitigate the risk of exploitation.