What is CVE-2022-32478?

CVE-2022-32478 is a vulnerability in Insyde InsydeH2O with kernel 5.0 through 5.5 that can lead to corruption of SMRAM and privilege escalation.

How does CVE-2022-32478 affect the Insyde InsydeH2O software?

CVE-2022-32478 affects Insyde InsydeH2O software with kernel versions 5.0 through 5.5, potentially leading to corruption of SMRAM and privilege escalation.

What is the severity of CVE-2022-32478?

CVE-2022-32478 has a severity rating of high (7 out of 10).

How can CVE-2022-32478 be mitigated?

CVE-2022-32478 can be mitigated by using IOMMU protection to prevent DMA attacks on the IdeBusDxe shared buffer.

Where can I find more information about CVE-2022-32478?

You can find more information about CVE-2022-32478 on the Insyde website. Please refer to the provided references for further details.

Vulnerability/
CVE-2022-32478

high

CWE

367

15/2/2023

3/8/2024

CVE-2022-32478

First published: Wed Feb 15 2023(Updated: )

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the IdeBusDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Insyde InsydeH2O	>=5.0<5.0.05.09.42
Insyde InsydeH2O	>=5.1<5.1.05.17.42
Insyde InsydeH2O	>=5.2<5.2.05.27.38
Insyde InsydeH2O	>=5.3<5.3.05.36.27
Insyde InsydeH2O	>=5.4<5.4.05.44.27

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Frequently Asked Questions

What is CVE-2022-32478?
CVE-2022-32478 is a vulnerability in Insyde InsydeH2O with kernel 5.0 through 5.5 that can lead to corruption of SMRAM and privilege escalation.
How does CVE-2022-32478 affect the Insyde InsydeH2O software?
CVE-2022-32478 affects Insyde InsydeH2O software with kernel versions 5.0 through 5.5, potentially leading to corruption of SMRAM and privilege escalation.
What is the severity of CVE-2022-32478?
CVE-2022-32478 has a severity rating of high (7 out of 10).
How can CVE-2022-32478 be mitigated?
CVE-2022-32478 can be mitigated by using IOMMU protection to prevent DMA attacks on the IdeBusDxe shared buffer.
Where can I find more information about CVE-2022-32478?
You can find more information about CVE-2022-32478 on the Insyde website. Please refer to the provided references for further details.

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