CVE-2021-46894: Use After Free
First published: Thu Jul 06 2023(Updated: )
Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.
Credit: psirt@huawei.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Huawei EMUI | =12.0.0 | |
| Huawei HarmonyOS | =2.0.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-46894?
CVE-2021-46894 is classified as a high severity vulnerability due to its potential for kernel privilege escalation.
How does CVE-2021-46894 affect affected devices?
CVE-2021-46894 can lead to unauthorized access to kernel privileges on Huawei devices running specific versions of Emui and HarmonyOS.
How do I fix CVE-2021-46894?
To fix CVE-2021-46894, ensure that your device is updated to the latest security patch provided by the manufacturer.
Which devices are affected by CVE-2021-46894?
CVE-2021-46894 affects devices running Huawei Emui version 12.0.0 and Huawei HarmonyOS version 2.0.0.
What is a Use After Free vulnerability like CVE-2021-46894?
A Use After Free vulnerability such as CVE-2021-46894 occurs when a program continues to use a pointer after the memory it points to has been freed, potentially allowing exploitation.
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