Insyde's Security Pledge
Insyde Security Advisory 2022065
| Insyde ID | Advisory Category | Impact of Vulnerability | Severity Rating | Original Date | Last Revised |
| INSYDE-SA-2022065 | Software | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:H | 7.2 | 11/14/2022 | 11/14/2022 |
Summary:
Manipulation of the input address in PnpSmm function 0x52 could be used by malware to overwrite SMRAM or OS kernel memory.
Vulnerability Details
Function 0x52 of the PnpSmm driver is passed the address and size of data to write into the SMBIOS table, but manipulation of the address could be used by malware to overwrite SMRAM or OS kernel memory. This issue was discovered by Insyde engineering during a security review. This issue is fixed in:
Kernel 5.0: 05.09.41
Kernel 5.1: 05.17.43
Kernel 5.2: 05.27.30
Kernel 5.3: 05.36.30
Kernel 5.4: 05.44.30
Kernel 5.5: 05.52.30
Revision History:
| Revision | Date | Description |
| 1.0 | 11/14/2022 | Initial Release |
| - | - | - |