CVE-2022-33982

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

14/11/2022

Last modified:

30/04/2025

Description

DMA attacks on the parameter buffer used by the Int15ServiceSmm software SMI handler could lead to a TOCTOU attack on the SMI handler and lead to corruption of SMRAM. DMA attacks on the parameter buffer used by the software SMI handler used by the driver Int15ServiceSmm 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 5.2: 05.27.23, Kernel 5.3: 05.36.23, Kernel 5.4: 05.44.23 and Kernel 5.5: 05.52.23 CWE-367

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

6.40

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:insyde:kernel::::::::	5.2 (including)	5.2.05.27.23 (excluding)
cpe:2.3:a:insyde:kernel::::::::	5.3 (including)	5.3.05.36.23 (excluding)
cpe:2.3:a:insyde:kernel::::::::	5.4 (including)	5.4.05.44.23 (excluding)
cpe:2.3:a:insyde:kernel::::::::	5.5 (including)	5.5.05.52.23 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-33982

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools