CVE-2021-22480 : What You Need to Know

This article provides detailed information about CVE-2021-22480, a vulnerability found in HarmonyOS, affecting version 2.0.

Understanding CVE-2021-22480

CVE-2021-22480 is an integer overflow vulnerability in a specific HarmonyOS module, which could result in a heap memory overflow when successfully exploited.

What is CVE-2021-22480?

The interface of a certain HarmonyOS module contains an integer overflow vulnerability, posing a risk of heap memory overflow if exploited.

The Impact of CVE-2021-22480

Successful exploitation of this vulnerability could lead to a heap memory overflow, potentially allowing attackers to execute arbitrary code or trigger a denial of service condition.

Technical Details of CVE-2021-22480

Below are the technical details of the CVE-2021-22480 vulnerability:

Vulnerability Description

The vulnerability arises from an integer overflow in a specific HarmonyOS module, resulting in a heap memory overflow if successfully abused.

Affected Systems and Versions

Product: HarmonyOS
Vendor: Huawei
Version: 2.0

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the integer value in the affected HarmonyOS module, causing a heap memory overflow.

Mitigation and Prevention

To address CVE-2021-22480, consider the following mitigation strategies:

Immediate Steps to Take

Apply security patches released by Huawei for HarmonyOS version 2.0 to fix the integer overflow vulnerability.
Monitor network activity for any signs of exploitation or unusual behavior indicative of an attack.

Long-Term Security Practices

Regularly update HarmonyOS and other software to eliminate known vulnerabilities and enhance security.
Conduct security training for developers to mitigate similar vulnerabilities in the future.

Patching and Updates

Stay informed about security bulletins and updates from Huawei's official sources for the latest information on CVE-2021-22480 and other vulnerabilities affecting HarmonyOS.