Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-3970

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
22/04/2022
Last modified:
06/05/2022

Description

A potential vulnerability in LenovoVariable SMI Handler due to insufficient validation in some Lenovo Notebook models BIOS may allow an attacker with local access and elevated privileges to execute arbitrary code.

Impact

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

Base Score: 6.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
6.70
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:lenovo:ideapad_3-14ada05_firmware:*:*:*:*:*:*:*:* e8cn33ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-14ada05:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-14ada6_firmware:*:*:*:*:*:*:*:* hbcn21ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-14ada6:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-14alc6_firmware:*:*:*:*:*:*:*:* glcn43ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-14alc6:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-14are05_firmware:*:*:*:*:*:*:*:* dzcn42ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-14are05:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-15ada6_firmware:*:*:*:*:*:*:*:* hbcn21ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-15ada6:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-15alc6_firmware:*:*:*:*:*:*:*:* glcn43ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-15alc6:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-15are05_firmware:*:*:*:*:*:*:*:* dzcn42ww (excluding)
cpe:2.3:h:lenovo:ideapad_3-15are05:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:ideapad_3-15igl05_firmware:*:*:*:*:*:*:*:* dvcn23ww (excluding)

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


References to Advisories, Solutions, and Tools