Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-3786

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
12/11/2021
Last modified:
26/11/2021

Description

A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
2.10
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:lenovo:thinkpad_x380_yoga_firmware:*:*:*:*:*:*:*:* 2020-10-31 (excluding)
cpe:2.3:h:lenovo:thinkpad_x380_yoga:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x1_fold_gen_1_firmware:*:*:*:*:*:*:*:* 2021-10-29 (excluding)
cpe:2.3:h:lenovo:thinkpad_x1_fold_gen_1:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_yoga_260_firmware:*:*:*:*:*:*:*:* 2021-10-25 (excluding)
cpe:2.3:h:lenovo:thinkpad_yoga_260:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_yoga_11e_3rd_gen_firmware:*:*:*:*:*:*:*:* 2021-10-31 (excluding)
cpe:2.3:h:lenovo:thinkpad_yoga_11e_3rd_gen:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_yoga_15_firmware:*:*:*:*:*:*:*:* n19et66w (excluding)
cpe:2.3:h:lenovo:thinkpad_yoga_15:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_yoga_370_firmware:*:*:*:*:*:*:*:* 2021-10-31 (excluding)
cpe:2.3:h:lenovo:thinkpad_yoga_370:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x12_detachable_gen_1_firmware:*:*:*:*:*:*:*:* 2021-10-31 (excluding)
cpe:2.3:h:lenovo:thinkpad_x12_detachable_gen_1:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_x390_firmware:*:*:*:*:*:*:*:* n2jet96w (excluding)

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


References to Advisories, Solutions, and Tools