CVE-2021-43522 Information

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08 5.2 through 2021-11-08 and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Reference

https://www.insyde.com/security-pledge https://security.netapp.com/advisory/ntap-20220216-0003/ https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5