Details of VAR-202106-1771

ID

VAR-202106-1771

CVE

CVE-2021-34201

TITLE

D-Link DIR-2640-US Out-of-bounds Vulnerability in Microsoft

Trust: 0.8

sources: JVNDB: JVNDB-2021-008350

DESCRIPTION

D-Link DIR-2640-US 1.01B04 is vulnerable to Buffer Overflow. There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640). Local ordinary users can overwrite the global variables in the .bss section, causing the process crashes or changes. D-Link DIR-2640-US Is vulnerable to an out-of-bounds write.Information is tampered with and denial of service (DoS) It may be put into a state. D-Link DIR-2640-US is a smart AC2600 high-power Wi-Fi gigabit router

Trust: 2.16

sources: NVD: CVE-2021-34201 // JVNDB: JVNDB-2021-008350 // CNVD: CNVD-2021-43376

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-43376

AFFECTED PRODUCTS

vendor:	dlink	model:	dir-2640-us	scope:	eq	version:	1.01b04	Trust: 1.0
vendor:	d link	model:	d-link dir-2640-us	scope:	eq	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dir-2640-us	scope:	eq	version:	d-link dir-2640-us firmware 1.01b04	Trust: 0.8
vendor:	d link	model:	dir-2640-us 1.01b04	scope:	-	version:	-	Trust: 0.6

sources: CNVD: CNVD-2021-43376 // JVNDB: JVNDB-2021-008350 // NVD: CVE-2021-34201

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-34201
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-34201
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-43376
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202106-1352
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2021-34201
severity:	LOW
baseScore:	3.6
vectorString:	AV:L/AC:L/AU:N/C:N/I:P/A:P
accessVector:	LOCAL
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	3.9
impactScore:	4.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.8
CNVD:	CNVD-2021-43376
severity:	HIGH
baseScore:	8.5
vectorString:	AV:N/AC:L/AU:S/C:N/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	NONE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	9.2
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-34201
baseSeverity:	HIGH
baseScore:	7.1
vectorString:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
attackVector:	LOCAL
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	1.8
impactScore:	5.2
version:	3.1
Trust: 1.0
NVD:	CVE-2021-34201
baseSeverity:	HIGH
baseScore:	7.1
vectorString:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
attackVector:	LOCAL
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-43376 // JVNDB: JVNDB-2021-008350 // CNNVD: CNNVD-202106-1352 // NVD: CVE-2021-34201

PROBLEMTYPE DATA

problemtype:	CWE-787	Trust: 1.0
problemtype:	Out-of-bounds writing (CWE-787) [NVD Evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-008350 // NVD: CVE-2021-34201

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202106-1352

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202106-1352

PATCH

title:	Security Bulletin	url:	https://www.dlink.com/en/security-bulletin/	Trust: 0.8
title:	D-Link DIR-2640-US Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=155303	Trust: 0.6

sources: JVNDB: JVNDB-2021-008350 // CNNVD: CNNVD-202106-1352

EXTERNAL IDS

db:	NVD	id:	CVE-2021-34201	Trust: 3.8
db:	JVNDB	id:	JVNDB-2021-008350	Trust: 0.8
db:	CNVD	id:	CNVD-2021-43376	Trust: 0.6
db:	CNNVD	id:	CNNVD-202106-1352	Trust: 0.6

sources: CNVD: CNVD-2021-43376 // JVNDB: JVNDB-2021-008350 // CNNVD: CNNVD-202106-1352 // NVD: CVE-2021-34201

REFERENCES

url:	https://github.com/liyansong2018/cve/tree/main/2021/cve-2021-34201	Trust: 2.4
url:	https://www.dlink.com/en/security-bulletin/	Trust: 1.6
url:	http://d-link.com	Trust: 1.6
url:	http://dir-2640-us.com	Trust: 1.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-34201	Trust: 1.4

sources: CNVD: CNVD-2021-43376 // JVNDB: JVNDB-2021-008350 // CNNVD: CNNVD-202106-1352 // NVD: CVE-2021-34201

SOURCES

db:	CNVD	id:	CNVD-2021-43376
db:	JVNDB	id:	JVNDB-2021-008350
db:	CNNVD	id:	CNNVD-202106-1352
db:	NVD	id:	CVE-2021-34201

LAST UPDATE DATE

2024-08-14T15:01:26.875000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-43376	date:	2021-06-19T00:00:00
db:	JVNDB	id:	JVNDB-2021-008350	date:	2022-03-14T07:16:00
db:	CNNVD	id:	CNNVD-202106-1352	date:	2021-06-28T00:00:00
db:	NVD	id:	CVE-2021-34201	date:	2024-02-14T01:17:43.863

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-43376	date:	2021-06-19T00:00:00
db:	JVNDB	id:	JVNDB-2021-008350	date:	2022-03-14T00:00:00
db:	CNNVD	id:	CNNVD-202106-1352	date:	2021-06-16T00:00:00
db:	NVD	id:	CVE-2021-34201	date:	2021-06-16T20:15:07.573