CVE Vulnerability

CVE-2022-33906

DMA transactions which are targeted at input buffers used for the FwBlockServiceSmm software SMI handler could cause SMRAM corruption through a TOCTOU attack. DMA transactions which are targeted at input buffers used for the software SMI handler used by the FwBlockServiceSmm driver could cause SMRAM corruption through a TOCTOU attack. This issue was discovered by Insyde engineering based on the general description provided by Intel's iSTARE group. Fixed in kernel 5.2: 05.27.23, 5.3: 05.36.23, 5.4: 05.44.23, 5.5: 05.52.23 https://www.insyde.com/security-pledge/SA-2022048

6.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.insyde.com/security-pledge Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022048 Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-450613.pdf
Configurations

Configuration 1

cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
cpe:2.3:a:insyde:kernel:*:*:*:*:*:*:*:*
Information

Published : 2022-11-15 12:15

Updated : 2023-02-14 12:15

NVD link : CVE-2022-33906

Mitre link : CVE-2022-33906

Products Affected
No products.
CWE
CWE-367