CVE-2021-34387

CVSS V2 High 7.2 CVSS V3 Medium 6.7

Description

The ARM TrustZone Technology on which Trusty is based on contains a vulnerability in access permission settings where the portion of the DRAM reserved for TrustZone is identity-mapped by TLK with read, write, and execute permissions, which gives write access to kernel code and data that is otherwise mapped read only.

Overview

CVE ID
CVE-2021-34387

Assigner
psirt@nvidia.com

Vulnerability Status
Analyzed

Published Version
2021-06-21T22:15:07

Last Modified Date
2021-06-29T14:13:03

Weakness Enumerations

CWE	URL
CWE-276	http://cwe.mitre.org/data/definitions/276.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:o:nvidia:jetson_linux::::::::	1	OR	32.5.1
cpe:2.3:h:nvidia:jetson_tx1:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
7.2

Severity
HIGH

Exploitability Score
3.9

Impact Score
10

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
HIGH

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
6.7

Base Severity
MEDIUM

Exploitability Score
0.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://nvidia.custhelp.com/app/answers/detail/a_id/5205	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-34387
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34387

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:09:39				Added to TrackCVE
2022-12-05 04:44:25	2021-06-21T22:15Z	2021-06-21T22:15:07	CVE Published Date	updated
2022-12-05 04:44:25		2021-06-29T14:13:03	CVE Modified Date	updated
2022-12-05 04:44:25		Analyzed	Vulnerability Status	updated