PT-2023-13063 · Insyde · Insydeh2O

CVE-2022-32470 · Publicado 2023-02-15 · Atualizado 2023-02-23

Positive Technologies (AI Summary)

CVSS v3.1

7.0

Alta

Vetor base

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Insyde InsydeH2O versions 5.0 through 5.5

Description An issue was discovered in Insyde InsydeH2O that could cause TOCTOU race-condition issues due to DMA attacks on the FwBlockServiceSmm shared buffer used by SMM and non-SMM code, potentially leading to corruption of SMRAM and escalation of privileges. This issue can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer or by copying the firmware block services data to SMRAM before checking it.

Recommendations For Insyde InsydeH2O versions 5.0 through 5.5, consider using IOMMU protection for the ACPI runtime memory used for the command buffer as a mitigation measure. For Insyde InsydeH2O versions 5.0 through 5.5, copying the firmware block services data to SMRAM before checking it can also mitigate this issue.

Correção

Time Of Check To Time Of Use

Enumeração de Fraquezas

CWE-367

Identificadores relacionados

CVE-2022-32470

Produtos afetados

Insydeh2O

Referências · 5

• https://osv.dev/vulnerability/CVE-2022-32470 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2022-32470 · Nota de Segurança
• https://t.me/cibsecurity/58199 · Publicação no Telegram
• https://insyde.com/security-pledge/SA-2023002 · Aviso do Fabricante
• https://insyde.com/security-pledge · Aviso do Fabricante