Details of VAR-202004-1660

ID

VAR-202004-1660

CVE

CVE-2018-21214

TITLE

plural NETGEAR Classic buffer overflow vulnerability in the product

Trust: 0.8

sources: JVNDB: JVNDB-2018-016355

DESCRIPTION

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, EX2700 before 1.0.1.28, R6100 before 1.0.1.20, R7500v2 before 1.0.3.24, R9000 before 1.0.2.52, WN2000RPTv3 before 1.0.1.20, WN3000RPv3 before 1.0.2.50, and WN3100RPv2 before 1.0.0.56. plural NETGEAR The product contains a classic buffer overflow vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR D3600, etc. are all products of NETGEAR. NETGEAR D3600 is a wireless modem. NETGEAR D6100 is a wireless modem. NETGEAR R6100 is a wireless router. The vulnerability stems from the fact that when the network system or product performs operations on the memory, the data boundary is not correctly verified, resulting in incorrect read and write operations to other associated memory locations. This affects D3600 prior to 1.0.0.67, D6000 prior to 1.0.0.67, EX2700 prior to 1.0.1.28, R6100 prior to 1.0.1.20, R7500v2 prior to 1.0.3.24, R9000 prior to 1.0.2.52, WN2000RPTv3 prior to 1.0.1.20, WN3000RPv3 prior to 1.0.2.50, and WN3100RPv2 prior to 1.0.0.56

Trust: 2.25

sources: NVD: CVE-2018-21214 // JVNDB: JVNDB-2018-016355 // CNVD: CNVD-2021-46566 // VULMON: CVE-2018-21214

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-46566

AFFECTED PRODUCTS

vendor:	netgear	model:	r9000	scope:	lt	version:	1.0.2.52	Trust: 1.6
vendor:	netgear	model:	r6100	scope:	lt	version:	1.0.1.20	Trust: 1.6
vendor:	netgear	model:	ex2700	scope:	lt	version:	1.0.1.28	Trust: 1.6
vendor:	netgear	model:	d3600	scope:	lt	version:	1.0.0.67	Trust: 1.6
vendor:	netgear	model:	d6000	scope:	lt	version:	1.0.0.67	Trust: 1.6
vendor:	netgear	model:	wn3100rp	scope:	lt	version:	1.0.0.56	Trust: 1.0
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.24	Trust: 1.0
vendor:	netgear	model:	wn3000rp	scope:	lt	version:	1.0.2.50	Trust: 1.0
vendor:	netgear	model:	wn2000rpt	scope:	lt	version:	1.0.1.20	Trust: 1.0
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.67	Trust: 0.8
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.67	Trust: 0.8
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.1.20	Trust: 0.8
vendor:	netgear	model:	ex2700	scope:	eq	version:	1.0.1.28	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.24	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.52	Trust: 0.8
vendor:	netgear	model:	wn2000rpt	scope:	eq	version:	1.0.1.20	Trust: 0.8
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.2.50	Trust: 0.8
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.56	Trust: 0.8
vendor:	netgear	model:	wn3000rpv3	scope:	lt	version:	1.0.2.50	Trust: 0.6
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.24	Trust: 0.6
vendor:	netgear	model:	wn2000rptv3	scope:	lt	version:	1.0.1.20	Trust: 0.6
vendor:	netgear	model:	wn3100rpv2	scope:	lt	version:	1.0.0.56	Trust: 0.6
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.49	Trust: 0.2
vendor:	netgear	model:	d3600	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.61	Trust: 0.1
vendor:	netgear	model:	d6000	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.49	Trust: 0.1
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.61	Trust: 0.1
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.12	Trust: 0.1
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.14	Trust: 0.1
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.16	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.108	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.110	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.112	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.116	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.118	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.122	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.124	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.130	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.10	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.16	Trust: 0.1
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.20	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.4	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.30	Trust: 0.1
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.40	Trust: 0.1
vendor:	netgear	model:	wn2000rpt	scope:	eq	version:	1.0.1.8	Trust: 0.1
vendor:	netgear	model:	wn2000rpt	scope:	eq	version:	1.0.1.14	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.0.52	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.0.56	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.0.68	Trust: 0.1
vendor:	netgear	model:	wn3000rp	scope:	eq	version:	1.0.2.44	Trust: 0.1
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.20	Trust: 0.1
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.40	Trust: 0.1
vendor:	netgear	model:	wn3100rp	scope:	eq	version:	1.0.0.42	Trust: 0.1

sources: CNVD: CNVD-2021-46566 // VULMON: CVE-2018-21214 // JVNDB: JVNDB-2018-016355 // NVD: CVE-2018-21214

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21214
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2018-21214
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2018-016355
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-46566
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2287
value:	HIGH
Trust: 0.6
VULMON:	CVE-2018-21214
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21214
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	6.5
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
NVD:	JVNDB-2018-016355
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8
CNVD:	CNVD-2021-46566
severity:	MEDIUM
baseScore:	5.8
vectorString:	AV:A/AC:L/AU:N/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	6.5
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-21214
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2018-21214
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2018-016355
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-46566 // VULMON: CVE-2018-21214 // JVNDB: JVNDB-2018-016355 // CNNVD: CNNVD-202004-2287 // NVD: CVE-2018-21214 // NVD: CVE-2018-21214

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2018-016355 // NVD: CVE-2018-21214

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2287

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2287

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016355

PATCH

title:	Security Advisory for Pre-Authentication Buffer Overflow on Some Routers, Gateways, and Extenders, PSV-2017-2488	url:	https://kb.netgear.com/000055123/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2488	Trust: 0.8
title:	Patch for Buffer overflow vulnerabilities in multiple NETGEAR products (CNVD-2021-46566)	url:	https://www.cnvd.org.cn/patchInfo/show/276376	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117379	Trust: 0.6

sources: CNVD: CNVD-2021-46566 // JVNDB: JVNDB-2018-016355 // CNNVD: CNNVD-202004-2287

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21214	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016355	Trust: 0.8
db:	CNVD	id:	CNVD-2021-46566	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2287	Trust: 0.6
db:	VULMON	id:	CVE-2018-21214	Trust: 0.1

sources: CNVD: CNVD-2021-46566 // VULMON: CVE-2018-21214 // JVNDB: JVNDB-2018-016355 // CNNVD: CNNVD-202004-2287 // NVD: CVE-2018-21214

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21214	Trust: 2.0
url:	https://kb.netgear.com/000055123/security-advisory-for-pre-authentication-buffer-overflow-on-some-routers-gateways-and-extenders-psv-2017-2488	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21214	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/120.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2021-46566 // VULMON: CVE-2018-21214 // JVNDB: JVNDB-2018-016355 // CNNVD: CNNVD-202004-2287 // NVD: CVE-2018-21214

SOURCES

db:	CNVD	id:	CNVD-2021-46566
db:	VULMON	id:	CVE-2018-21214
db:	JVNDB	id:	JVNDB-2018-016355
db:	CNNVD	id:	CNNVD-202004-2287
db:	NVD	id:	CVE-2018-21214

LAST UPDATE DATE

2024-11-23T22:44:36.002000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-46566	date:	2021-07-02T00:00:00
db:	VULMON	id:	CVE-2018-21214	date:	2020-05-04T00:00:00
db:	JVNDB	id:	JVNDB-2018-016355	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2287	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21214	date:	2024-11-21T04:03:11.730

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-46566	date:	2021-07-01T00:00:00
db:	VULMON	id:	CVE-2018-21214	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016355	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2287	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21214	date:	2020-04-28T16:15:14.107