An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. 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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2022-02-03T01:30:36
Updated: 2024-08-03T23:58:21.427Z
Reserved: 2021-05-28T00:00:00
Link: CVE-2021-33627
Vulnrichment
No data.
NVD
Status : Modified
Published: 2022-02-03T02:15:06.983
Modified: 2024-11-21T06:09:13.607
Link: CVE-2021-33627
Redhat
No data.