CVE-2021-41837
High
Description
An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
SeverityHigh
CVSS8.2
Exploit probability—
ProductInsydeh2o
PublishedFeb 3, 2022
First seenFeb 3, 2022
How to fix
Update
- insyde insydeh2o5.08.41, 5.16.41, 5.26.41, 5.35.41, 5.43.41, 5.51.41 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| insyde insydeh2o | 5.0 ≤ v < 5.08.41, 5.1 ≤ v < 5.16.41, 5.2 ≤ v < 5.26.41, 5.3 ≤ v < 5.35.41, 5.4 ≤ v < 5.43.41, 5.5 ≤ v < 5.51.41 | 5.08.41, 5.16.41, 5.26.41, 5.35.41, 5.43.41, 5.51.41 |
| siemens simatic_field_pg_m5_firmware | No range specified | — |
| siemens simatic_field_pg_m6_firmware | No range specified | — |
| siemens simatic_ipc127e_firmware | No range specified | — |
| siemens simatic_ipc227g_firmware | No range specified | — |
| siemens simatic_ipc277g_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_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_itp1000_firmware | No range specified | — |
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