CVE-2021-22456 Explained : Impact and Mitigation
Learn about CVE-2021-22456, a HarmonyOS vulnerability allowing local attackers to cause Kernel System unavailability. Find impact, affected versions, and mitigation steps.
A component of the HarmonyOS has a Data Processing Errors vulnerability that may allow local attackers to exploit it, leading to Kernel System unavailability.
Understanding CVE-2021-22456
This CVE identifies a vulnerability in Huawei's HarmonyOS related to Data Processing Errors.
What is CVE-2021-22456?
The CVE-2021-22456 is a vulnerability within HarmonyOS, where an attacker with local access can trigger Data Processing Errors, ultimately causing the Kernel System to become unavailable.
The Impact of CVE-2021-22456
This vulnerability could be exploited by local attackers to disrupt the normal functioning of the Kernel System, potentially leading to system instability and denial of service.
Technical Details of CVE-2021-22456
This section provides more insight into the specifics of the CVE.
Vulnerability Description
The vulnerability in HarmonyOS allows attackers to exploit Data Processing Errors, compromising the Kernel System's availability.
Affected Systems and Versions
The vulnerability affects HarmonyOS version 2.0 by Huawei.
Exploitation Mechanism
Local attackers can exploit this vulnerability by triggering Data Processing Errors, disrupting the Kernel System.
Mitigation and Prevention
To address CVE-2021-22456, follow these security measures.
Immediate Steps to Take
Update the affected HarmonyOS devices to the latest version provided by Huawei.
Long-Term Security Practices
Implement robust security practices, such as regular security audits and access control mechanisms, to prevent similar vulnerabilities.
Patching and Updates
Stay vigilant for security updates and patches released by Huawei for HarmonyOS to mitigate the risk of exploitation.