CVE-2022-40246

CVSS V2 None CVSS V3 High 7.2

Description

A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: SbPei SHA256: d827182e5f9b7a9ff0b9d3e232f7cfac43b5237e2681e11f005be627a49283a9 Module GUID: c1fbd624-27ea-40d1-aa48-94c3dc5c7e0d

Overview

CVE ID
CVE-2022-40246

Assigner
cret@cert.org

Vulnerability Status
Analyzed

Published Version
2022-09-20T18:15:10

Last Modified Date
2022-09-26T14:22:04

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc510_firmware:0072:::::::*	1	OR
cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc510:-:::::::*	0	OR
		AND
cpe:2.3:o:intel:nuc_m15_laptop_kit_lapbc710_firmware:0072:::::::*	1	OR
cpe:2.3:h:intel:nuc_m15_laptop_kit_lapbc710:-:::::::*	0	OR

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
PHYSICAL

Attack Compatibility
LOW

Privileges Required
HIGH

User Interaction
NONE

Scope
CHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.2

Base Severity
HIGH

Exploitability Score
0.5

Impact Score
6

References

Reference URL	Reference Tags
https://www.binarly.io/advisories/BRLY-2022-014
https://www.ami.com/security-center/

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2022-40246
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-40246

History

Created	Old Value	New Value	Data Type	Notes
2022-09-20 19:00:24				Added to TrackCVE