What is the severity of CVE-2021-37021?

CVE-2021-37021 is considered a critical vulnerability due to its potential to cause a stack-based buffer overflow leading to out-of-bounds reads.

How do I fix CVE-2021-37021?

To mitigate CVE-2021-37021, you should update your Huawei device to the latest firmware version as provided in Huawei's security updates.

Which Huawei software versions are affected by CVE-2021-37021?

CVE-2021-37021 affects Huawei EMUI versions 10.1.0, 10.1.1, 11.0.0, 11.0.1, and various versions of HarmonyOS and Magic UI.

What types of attacks can exploit CVE-2021-37021?

Exploitation of CVE-2021-37021 may allow attackers to perform out-of-bounds read operations, potentially leading to unauthorized data access.

Is there a workaround for CVE-2021-37021?

There is no specific workaround for CVE-2021-37021 other than applying the latest software updates from Huawei.

Vulnerability/
CVE-2021-37021

critical

9.1

CWE

119 787

7/12/2021

4/8/2024

CVE-2021-37021: Buffer Overflow

First published: Tue Dec 07 2021(Updated: )

There is a Stack-based Buffer Overflow vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may lead to Out-of-bounds read.

Credit: psirt@huawei.com

Affected Software	Affected Version	How to fix
Huawei EMUI	=10.1.0
Huawei EMUI	=10.1.1
Huawei EMUI	=11.0.0
Huawei EMUI	=11.0.1
Huawei HarmonyOS	<2.0
Huawei Magic UI	=3.1.0
Huawei Magic UI	=3.1.1
Huawei Magic UI	=4.0.0

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Reference Links

https://device.harmonyos.com/en/docs/security/update/security-bulletins-202109-0000001196270727

Frequently Asked Questions

What is the severity of CVE-2021-37021?
CVE-2021-37021 is considered a critical vulnerability due to its potential to cause a stack-based buffer overflow leading to out-of-bounds reads.
How do I fix CVE-2021-37021?
To mitigate CVE-2021-37021, you should update your Huawei device to the latest firmware version as provided in Huawei's security updates.
Which Huawei software versions are affected by CVE-2021-37021?
CVE-2021-37021 affects Huawei EMUI versions 10.1.0, 10.1.1, 11.0.0, 11.0.1, and various versions of HarmonyOS and Magic UI.
What types of attacks can exploit CVE-2021-37021?
Exploitation of CVE-2021-37021 may allow attackers to perform out-of-bounds read operations, potentially leading to unauthorized data access.
Is there a workaround for CVE-2021-37021?
There is no specific workaround for CVE-2021-37021 other than applying the latest software updates from Huawei.

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version/huawei emui/10.1.1
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version/huawei emui/11.0.1
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canonical/huawei magic ui
version/huawei magic ui/3.1.0
version/huawei magic ui/3.1.1
version/huawei magic ui/4.0.0

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