CVE-2021-33625
High
Description
An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.
SeverityHigh
CVSS7.5
Exploit probability—
ProductInsydeh2o
PublishedFeb 3, 2022
First seenFeb 3, 2022
How to fix
Update
- insyde insydeh2o5.16.23, 5.26.23, 5.35.23, 5.43.22, 5.51.22 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.1 ≤ v < 5.16.23, 5.2 ≤ v < 5.26.23, 5.3 ≤ v < 5.35.23, 5.4 ≤ v < 5.43.22, 5.5 ≤ v < 5.51.22 | 5.16.23, 5.26.23, 5.35.23, 5.43.22, 5.51.22 |
| netapp fas\/aff_bios | No range specified | — |
| siemens ruggedcom_ape1808_firmware | No range specified | — |
| siemens simatic_field_pg_m5_firmware | No range specified | — |
| siemens simatic_ipc127e_firmware | No range specified | — |
| siemens simatic_itp1000_firmware | No range specified | — |
| siemens simatic_ipc277g_firmware | No range specified | — |
| siemens simatic_ipc227g_firmware | No range specified | — |
| siemens simatic_ipc327g_firmware | No range specified | — |
| siemens simatic_ipc377g_firmware | No range specified | — |
| siemens simatic_ipc427e_firmware | No range specified | — |
| siemens simatic_ipc477e_firmware | No range specified | — |
| siemens simatic_ipc477e_pro_firmware | No range specified | — |
| siemens simatic_ipc627e_firmware | No range specified | — |
| siemens simatic_ipc647e_firmware | No range specified | — |
| siemens simatic_ipc677e_firmware | No range specified | — |
| siemens simatic_ipc847e_firmware | No range specified | — |
| siemens simatic_field_pg_m6_firmware | No range specified | — |
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