CVE-2021-46885 : What You Need to Know

A memory overwriting vulnerability in the video framework of Huawei HarmonyOS and EMUI may lead to availability issues when exploited.

Understanding CVE-2021-46885

This CVE involves a memory overwriting vulnerability affecting Huawei HarmonyOS and EMUI versions.

What is CVE-2021-46885?

The CVE-2021-46885 vulnerability is caused by addition overflow in the video framework, potentially leading to memory overwriting. When successfully exploited, it can impact system availability.

The Impact of CVE-2021-46885

The successful exploitation of CVE-2021-46885 can lead to availability issues within affected systems.

Technical Details of CVE-2021-46885

This section delves into specific technical aspects of the CVE.

Vulnerability Description

The vulnerability in the video framework results from a memory overwriting issue due to addition overflow.

Affected Systems and Versions

Vendor: Huawei
Products Affected: HarmonyOS, EMUI
Affected Versions:
HarmonyOS: 2.1.0, 2.0.1, 2.0.0
EMUI: 12.0.1, 12.0.0, 11.0.0, 10.1.1, 10.1.0

Exploitation Mechanism

The vulnerability can be exploited through specific actions resulting in addition overflow, triggering memory overwriting.

Mitigation and Prevention

Understanding how to mitigate and prevent exploitation of CVE-2021-46885 is crucial.

Immediate Steps to Take

Apply security patches promptly
Monitor vendor updates for mitigation instructions
Implement network-level controls to minimize exploit risks

Long-Term Security Practices

Conduct regular security assessments
Enhance system monitoring for unusual memory activities
Educate users on safe practices to prevent malicious exploitation

Patching and Updates

Install relevant security patches from Huawei
Keep systems up to date with the latest software releases