Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-3843

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
12/11/2021
Last modified:
23/11/2021

Description

A potential vulnerability in the SMI function to access EEPROM in some ThinkPad models 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:thinkpad_11e_3rd_gen_firmware:*:*:*:*:braswell:*:*:* 1.22 (including)
cpe:2.3:h:lenovo:thinkpad_11e_3rd_gen:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_11e_3rd_gen_firmware:*:*:*:*:skylate:*:*:* 1.29 (including)
cpe:2.3:h:lenovo:thinkpad_11e_3rd_gen:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_11e_4th_gen_i3_firmware:*:*:*:*:*:*:*:* 1.22 (including)
cpe:2.3:h:lenovo:thinkpad_11e_4th_gen_i3:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_11e_4th_gen_i7_firmware:*:*:*:*:*:*:*:* 1.22 (including)
cpe:2.3:h:lenovo:thinkpad_11e_4th_gen_i7:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_11e_4th_gen_i5_firmware:*:*:*:*:*:*:*:* 1.22 (including)
cpe:2.3:h:lenovo:thinkpad_11e_4th_gen_i5:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_11e_4th_gen_celeron_firmware:*:*:*:*:*:*:*:* 1.27 (including)
cpe:2.3:h:lenovo:thinkpad_11e_4th_gen_celeron:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_11e_yoga_gen_6_firmware:*:*:*:*:*:*:*:* 1.12 (including)
cpe:2.3:h:lenovo:thinkpad_11e_yoga_gen_6:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:thinkpad_13_gen_2_firmware:*:*:*:*:*:*:*:* 1.29 (including)

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


References to Advisories, Solutions, and Tools