CVE-2021-39996: Buffer Overflow
First published: Fri Jan 07 2022(Updated: )
There is a Heap-based buffer overflow vulnerability with the NFC module in smartphones. Successful exploitation of this vulnerability may cause memory overflow.
Credit: psirt@huawei.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Huawei HarmonyOS | <2.0 | |
| Huawei EMUI | =10.0.0 | |
| Huawei EMUI | =10.1.0 | |
| Huawei EMUI | =10.1.1 | |
| Huawei EMUI | =11.0.0 | |
| Huawei EMUI | =11.0.1 | |
| Huawei Magic UI | =3.0.0 | |
| Huawei Magic UI | =3.1.0 | |
| Huawei Magic UI | =3.1.1 | |
| Huawei Magic UI | =4.0.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-39996?
CVE-2021-39996 is considered a high severity vulnerability due to the potential for heap-based buffer overflow exploitation.
How do I fix CVE-2021-39996?
To fix CVE-2021-39996, users should update their Huawei devices to the latest software version provided in the security bulletins.
Which devices are affected by CVE-2021-39996?
CVE-2021-39996 affects various Huawei devices running HarmonyOS and specific versions of EMUI and Magic UI.
What could happen if CVE-2021-39996 is exploited?
Exploitation of CVE-2021-39996 could lead to memory overflow, potentially allowing an attacker to execute arbitrary code.
Is there a workaround for CVE-2021-39996?
There is no documented workaround for CVE-2021-39996; applying the recommended updates is essential for mitigation.
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- vendor/huawei
- canonical/huawei harmonyos
- canonical/huawei emui
- version/huawei emui/10.0.0
- version/huawei emui/10.1.0
- version/huawei emui/10.1.1
- version/huawei emui/11.0.0
- version/huawei emui/11.0.1
- canonical/huawei magic ui
- version/huawei magic ui/3.0.0
- version/huawei magic ui/3.1.0
- version/huawei magic ui/3.1.1
- version/huawei magic ui/4.0.0