CVE-2021-46890 : What You Need to Know

A vulnerability in incomplete read and write permission verification in the GPU module affecting Huawei's HarmonyOS and EMUI.

Understanding CVE-2021-46890

This CVE discloses a security flaw in Huawei's software that could lead to significant impact on service confidentiality, integrity, and availability.

What is CVE-2021-46890?

The vulnerability involves incomplete read and write permission verification in the GPU module of Huawei's HarmonyOS and EMUI. Exploiting this flaw could have severe consequences for system security.

The Impact of CVE-2021-46890

Successful exploitation of this vulnerability may result in compromised data confidentiality, integrity, and service availability on affected devices running HarmonyOS and EMUI.

Technical Details of CVE-2021-46890

This section delves deeper into the technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in inadequate read and write permission verification in the GPU module, leaving systems open to unauthorized access and potential exploitation.

Affected Systems and Versions

HarmonyOS 2.0.0 is affected by this vulnerability
EMUI 12.0.0 is also impacted

Exploitation Mechanism

The flaw can be exploited by malicious entities to bypass permission controls within the GPU module, compromising the security of the affected systems.

Mitigation and Prevention

Protecting systems from this vulnerability requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches or updates provided by Huawei promptly
Monitor vendor communications for security advisories

Long-Term Security Practices

Regularly update software and firmware on all devices
Implement least privilege access controls

Patching and Updates

Ensure timely installation of security patches released by Huawei to mitigate the risk of exploitation.