Details of VAR-202110-0167

ID

VAR-202110-0167

CVE

CVE-2021-25487

TITLE

Samsung OOB driver out-of-bounds read vulnerability

Trust: 0.6

sources: CNVD: CNVD-2023-99916

DESCRIPTION

Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer. The Samsung OOB driver is a driver that reads the modem interface for Samsung mobile devices. The Samsung OOB read modem interface driver has an out-of-bounds read vulnerability. An attacker can exploit this vulnerability to execute arbitrary code

Trust: 1.53

sources: NVD: CVE-2021-25487 // CNVD: CNVD-2023-99916 // VULMON: CVE-2021-25487

IOT TAXONOMY

category:

['IoT']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2023-99916

AFFECTED PRODUCTS

vendor:	samsung	model:	mobile devices q	scope:	-	version:	-	Trust: 1.2
vendor:	samsung	model:	mobile devices o	scope:	-	version:	-	Trust: 1.2
vendor:	samsung	model:	mobile devices p	scope:	-	version:	-	Trust: 1.2
vendor:	google	model:	android	scope:	eq	version:	10.0	Trust: 1.0
vendor:	google	model:	android	scope:	eq	version:	9.0	Trust: 1.0
vendor:	google	model:	android	scope:	eq	version:	11.0	Trust: 1.0
vendor:	google	model:	android	scope:	eq	version:	8.1	Trust: 1.0
vendor:	samsung	model:	mobile devices r	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2023-99916 // NVD: CVE-2021-25487

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-25487
value:	HIGH
Trust: 1.0
mobile.security@samsung.com:	CVE-2021-25487
value:	HIGH
Trust: 1.0
CNVD:	CNVD-2023-99916
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202110-344
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-25487
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-25487
severity:	MEDIUM
baseScore:	4.6
vectorString:	AV:L/AC:L/AU:N/C:P/I:P/A:P
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	3.9
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
CNVD:	CNVD-2023-99916
severity:	MEDIUM
baseScore:	4.6
vectorString:	AV:L/AC:L/AU:N/C:P/I:P/A:P
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	3.9
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-25487
baseSeverity:	HIGH
baseScore:	7.8
vectorString:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	LOCAL
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	1.8
impactScore:	5.9
version:	3.1
Trust: 1.0
mobile.security@samsung.com:	CVE-2021-25487
baseSeverity:	HIGH
baseScore:	7.3
vectorString:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
attackVector:	LOCAL
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	HIGH
integrityImpact:	LOW
availabilityImpact:	NONE
exploitabilityScore:	2.0
impactScore:	4.7
version:	3.1
Trust: 1.0

sources: CNVD: CNVD-2023-99916 // VULMON: CVE-2021-25487 // CNNVD: CNNVD-202110-344 // NVD: CVE-2021-25487 // NVD: CVE-2021-25487

PROBLEMTYPE DATA

problemtype:

CWE-125

Trust: 1.0

sources: NVD: CVE-2021-25487

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202110-344

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202110-344

PATCH

title:	Patch for Samsung OOB driver out-of-bounds read vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/354576	Trust: 0.6
title:	Samsung SMR Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=165366	Trust: 0.6

sources: CNVD: CNVD-2023-99916 // CNNVD: CNNVD-202110-344

EXTERNAL IDS

db:	NVD	id:	CVE-2021-25487	Trust: 2.3
db:	CNVD	id:	CNVD-2023-99916	Trust: 0.6
db:	CNNVD	id:	CNNVD-202110-344	Trust: 0.6
db:	VULMON	id:	CVE-2021-25487	Trust: 0.1

sources: CNVD: CNVD-2023-99916 // VULMON: CVE-2021-25487 // CNNVD: CNNVD-202110-344 // NVD: CVE-2021-25487

REFERENCES

url:	https://security.samsungmobile.com/securityupdate.smsb?year=2021&month=10	Trust: 1.7
url:	https://nvd.nist.gov/vuln/detail/cve-2021-25487	Trust: 1.2
url:	https://cwe.mitre.org/data/definitions/125.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2023-99916 // VULMON: CVE-2021-25487 // CNNVD: CNNVD-202110-344 // NVD: CVE-2021-25487

SOURCES

db:	CNVD	id:	CNVD-2023-99916
db:	VULMON	id:	CVE-2021-25487
db:	CNNVD	id:	CNNVD-202110-344
db:	NVD	id:	CVE-2021-25487

LAST UPDATE DATE

2024-08-14T15:06:43.492000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2023-99916	date:	2023-12-22T00:00:00
db:	VULMON	id:	CVE-2021-25487	date:	2021-10-13T00:00:00
db:	CNNVD	id:	CNNVD-202110-344	date:	2021-10-14T00:00:00
db:	NVD	id:	CVE-2021-25487	date:	2021-10-13T16:43:22.203

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2023-99916	date:	2022-10-10T00:00:00
db:	VULMON	id:	CVE-2021-25487	date:	2021-10-06T00:00:00
db:	CNNVD	id:	CNNVD-202110-344	date:	2021-10-06T00:00:00
db:	NVD	id:	CVE-2021-25487	date:	2021-10-06T18:15:09.567