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.

References

https://www.insyde.com/security-pledge/SA-2022014

https://www.insyde.com/security-pledge

https://security.netapp.com/advisory/ntap-20220222-0004/

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf

Details

Source: Mitre, NVD

Published: 2022-02-03

Updated: 2022-04-12

Risk Information

CVSS v2

Base Score: 6.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Severity: High