CVE-2021-22386 Explained : Impact and Mitigation
Discover how CVE-2021-22386 exposes Huawei smartphones to local attackers for Root Elevation of Privileges. Learn the impact, affected versions, and mitigation steps.
A Double Free vulnerability was found in a component of Huawei smartphones, including EMUI, Magic UI, and HarmonyOS. Local attackers could exploit this flaw to achieve Root Elevation of Privileges.
Understanding CVE-2021-22386
This CVE identifies a Double Free vulnerability in Huawei smartphones, allowing local attackers to escalate privileges to root level.
What is CVE-2021-22386?
CVE-2021-22386 is a Double Free vulnerability in Huawei smartphones, specifically affecting EMUI 11.0.0, Magic UI 4.0.0, and HarmonyOS 2.0. This security flaw can be exploited by local attackers to gain Root Elevation of Privileges.
The Impact of CVE-2021-22386
The impact of this vulnerability is significant as it allows attackers with local access to the device to potentially gain elevated privileges and perform unauthorized actions on the affected Huawei smartphones.
Technical Details of CVE-2021-22386
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability involves a Double Free issue in a component of Huawei smartphones, enabling attackers to manipulate memory to escalate privileges.
Affected Systems and Versions
The vulnerability affects Huawei smartphones running EMUI 11.0.0, Magic UI 4.0.0, and HarmonyOS 2.0.
Exploitation Mechanism
Local attackers exploit the Double Free vulnerability within the Huawei smartphone component to gain Root Elevation of Privileges.
Mitigation and Prevention
To address CVE-2021-22386, follow the mitigation steps and enhance the security of Huawei devices.
Immediate Steps to Take
Users are advised to update their Huawei smartphones to the latest software version provided by Huawei to mitigate the vulnerability.
Long-Term Security Practices
Implement best security practices, such as avoiding untrusted applications and networks, to reduce the risk of exploitation.
Patching and Updates
Regularly check for security updates from Huawei and apply them promptly to protect devices from known vulnerabilities.