Insyde Security Advisory 2022046

Insyde ID Advisory Category Impact of Vulnerability Severity Rating Original Date Last Revised
INSYDE-SA-2022046 Software CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H 4.4 11/08/2022 11/08/2022

Summary:

DMA transactions which are targeted at input buffers used for the SmmResourceCheckDxe software SMI handler cause SMRAM corruption (a TOCTOU attack)

Vulnerability Details

CVE-2022-32267

DMA transactions which are targeted at input buffers used for the software SMI handler used by the SmmResourceCheckDxe driver could cause SMRAM corruption through a TOCTOU attack... This issue was discovered by Insyde engineering. Fixed in kernel:

Kernel 5.2: 05.27.23
Kernel 5.3: 05.36.23
Kernel 5.4: 05.44.23
Kernel 5.5: 05.52.23

CWE-20

Revision History:

Revision Date Description
1.0 11/08/2022 Initial Release
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