Home/CVE/DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe software SMI handler could c
CVE

CVE-2022-34325

DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe software SMI handler could c

DMA transactions which are targeted at input buffers used for the StorageSecurityCommandDxe 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 StorageSecurityCommandDxe driver could cause SMRAM corruption. This issue was discovered by Insyde engineering based on the general description provided by.

HIGH · CVSS 7.8 EPSS 0.00038
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
▤

Affected Products & Versions

4
insyde insydeh2o>= 5.3 and < 05.36.23
insyde insydeh2o>= 5.2 and < 05.27.23
insyde insydeh2o>= 5.4 and < 05.44.23
insyde insydeh2o>= 5.5 and < 05.52.23
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Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Nov 2022 · 11:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2022057Vendor Advisory
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