Insyde Security Advisory 2022043

Insyde ID Advisory Category Impact of Vulnerability Severity Rating Original Date Last Revised
INSYDE-SA-2022043 Software CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H 7.5 11/08/2022 11/08/2022

Summary:

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents of parameter values (a TOCTOU attack).

Vulnerability Details

CVE-2022-30774

DMA attacks on the parameter buffer used by the PnpSmm driver could change the contents after parameter values have been checked but before they are used (a TOCTOU attack) . This issue was discovered by Insyde engineering during a security review. This was fixed in:

Kernel 5.2: 05.27.29
Kernel 5.3: 05.36.25
Kernel 5.4: 05.44.25
Kernel 5.5: 05.52.25

CWE-367

Revision History:

Revision Date Description
1.0 11/08/2022 Initial Release
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