CVE-2021-25481

CVSS V2 Medium 4.6 CVSS V3 Medium 6.7

Description

An improper error handling in Exynos CP booting driver prior to SMR Oct-2021 Release 1 allows local attackers to bypass a Secure Memory Protector of Exynos CP Memory.

Overview

CVE ID
CVE-2021-25481

Assigner
mobile.security@samsung.com

Vulnerability Status
Analyzed

Published Version
2021-10-06T18:15:09

Last Modified Date
2021-10-13T17:41:09

Weakness Enumerations

CWE	URL
CWE-754	http://cwe.mitre.org/data/definitions/754.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:o:google:android:8.1:::::::*	1	OR
cpe:2.3:o:google:android:9.0:::::::*	1	OR
cpe:2.3:o:google:android:10.0:::::::*	1	OR
cpe:2.3:o:google:android:11.0:::::::*	1	OR
cpe:2.3:h:samsung:exynos:-:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
4.6

Severity
MEDIUM

Exploitability Score
3.9

Impact Score
6.4

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://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-25481
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25481

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:51:47				Added to TrackCVE
2022-12-05 11:55:07	2021-10-06T18:15Z	2021-10-06T18:15:09	CVE Published Date	updated
2022-12-05 11:55:07		2021-10-13T17:41:09	CVE Modified Date	updated
2022-12-05 11:55:07		Analyzed	Vulnerability Status	updated