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.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected products
- insyde / insydeh2o5.0 – 5.08.41
- Siemens / simatic_field_pg_m5_firmware
- Siemens / simatic_field_pg_m6_firmware
- Siemens / simatic_ipc127e_firmware
- Siemens / simatic_ipc227g_firmware
- Siemens / simatic_ipc277g_firmware
- Siemens / simatic_ipc327g_firmware
- Siemens / simatic_ipc377g_firmware
- Siemens / simatic_ipc427e_firmware
- Siemens / simatic_ipc477e_firmware
- Siemens / simatic_ipc627e_firmware
- Siemens / simatic_ipc647e_firmware
- Siemens / simatic_ipc677e_firmware
- Siemens / simatic_ipc847e_firmware
- Siemens / simatic_itp1000_firmware
Updated 8m ago · 8 sources