CVE-2022-33986

DMA attacks on the parameter buffer used by the VariableRuntimeDxe software SMI handler could lead to a TOCTOU attack. DMA attacks on the parameter buffer used by the software SMI handler used by the driver VariableRuntimeDxe could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. This issue was discovered by Insyde engineering during a security review. This issue is fixed in Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23. CWE-367 CWE-367 Report at: https://www.insyde.com/security-pledge/SA-2022056

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

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-2022056	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:insyde:kernel::::::::
	cpe:2.3:a:insyde:kernel::::::::

History

No history.

Information

Published : 2022-11-15 00:15

Updated : 2024-02-28 19:29

NVD link : CVE-2022-33986

Mitre link : CVE-2022-33986

CVE.ORG link : CVE-2022-33986

JSON object : View

Products Affected

insyde

kernel

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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