Details of VAR-202004-1701

ID

VAR-202004-1701

CVE

CVE-2018-21190

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016371

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D6100 before 1.0.0.57, D7800 before 1.0.1.34, R6100 before 1.0.1.20, R7500 before 1.0.0.122, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62. plural NETGEAR The device is vulnerable to out-of-bounds writes.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be put into a state. NETGEAR D6100, etc. are all products of NETGEAR. NETGEAR D6100 is a wireless modem. NETGEAR WNDR3700 is a wireless router. NETGEAR R6100 is a wireless router. There are buffer error vulnerabilities in many NETGEAR products. The vulnerability stems from the fact that when a network system or product performs an operation on memory, the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. Attackers can use this vulnerability to cause buffer overflow or heap overflow. This affects D6100 prior to 1.0.0.57, D7800 prior to 1.0.1.34, R6100 prior to 1.0.1.20, R7500 prior to 1.0.0.122, R7800 prior to 1.0.2.40, R9000 prior to 1.0.2.52, WNDR3700v4 prior to 1.0.2.92, WNDR4300 prior to 1.0.2.94, WNDR4300v2 prior to 1.0.0.50, WNDR4500v3 prior to 1.0.0.50, and WNR2000v5 prior to 1.0.0.62

Trust: 2.25

sources: NVD: CVE-2018-21190 // JVNDB: JVNDB-2018-016371 // CNVD: CNVD-2020-28235 // VULMON: CVE-2018-21190

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-28235

AFFECTED PRODUCTS

vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.40	Trust: 1.6
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:	r7500	scope:	lt	version:	1.0.0.122	Trust: 1.6
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.2.94	Trust: 1.6
vendor:	netgear	model:	d7800	scope:	lt	version:	1.0.1.34	Trust: 1.6
vendor:	netgear	model:	d6100	scope:	lt	version:	1.0.0.57	Trust: 1.0
vendor:	netgear	model:	wndr4500	scope:	lt	version:	1.0.0.50	Trust: 1.0
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.0.50	Trust: 1.0
vendor:	netgear	model:	wnr2000	scope:	lt	version:	1.0.0.62	Trust: 1.0
vendor:	netgear	model:	wndr3700	scope:	lt	version:	1.0.2.92	Trust: 1.0
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.50	Trust: 0.9
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.57	Trust: 0.8
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.34	Trust: 0.8
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.20	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.122	Trust: 0.8
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.40	Trust: 0.8
vendor:	netgear	model:	r9000	scope:	eq	version:	1.0.2.52	Trust: 0.8
vendor:	netgear	model:	wndr3700	scope:	eq	version:	1.0.2.92	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.94	Trust: 0.8
vendor:	netgear	model:	wndr4500	scope:	eq	version:	1.0.0.50	Trust: 0.8
vendor:	netgear	model:	wnr2000v5	scope:	lt	version:	1.0.0.62	Trust: 0.6
vendor:	netgear	model:	wndr3700v4	scope:	lt	version:	1.0.2.92	Trust: 0.6
vendor:	netgear	model:	wndr4300v2	scope:	lt	version:	1.0.0.50	Trust: 0.6
vendor:	netgear	model:	wndr4500v3	scope:	lt	version:	1.0.0.50	Trust: 0.6
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.50 0.0.50	Trust: 0.1
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.55	Trust: 0.1
vendor:	netgear	model:	d6100	scope:	eq	version:	1.0.0.56	Trust: 0.1
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.22	Trust: 0.1
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.24	Trust: 0.1
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.28	Trust: 0.1
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.30	Trust: 0.1
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.31	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:	r7800	scope:	eq	version:	1.0.2.16	Trust: 0.1
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.28	Trust: 0.1
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.30	Trust: 0.1
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.32	Trust: 0.1
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.36	Trust: 0.1
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.38	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:	wndr3700	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	wndr3700	scope:	eq	version:	1.0.2.86	Trust: 0.1
vendor:	netgear	model:	wndr3700	scope:	eq	version:	1.0.2.88	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.48	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.52	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.54	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.56	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.88	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.90	Trust: 0.1
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.92	Trust: 0.1
vendor:	netgear	model:	wndr4500	scope:	eq	version:	-	Trust: 0.1
vendor:	netgear	model:	wndr4500	scope:	eq	version:	1.0.0.48	Trust: 0.1
vendor:	netgear	model:	wnr2000	scope:	eq	version:	1.0.0.42	Trust: 0.1
vendor:	netgear	model:	wnr2000	scope:	eq	version:	1.0.0.48	Trust: 0.1
vendor:	netgear	model:	wnr2000	scope:	eq	version:	1.0.0.58	Trust: 0.1

sources: CNVD: CNVD-2020-28235 // VULMON: CVE-2018-21190 // JVNDB: JVNDB-2018-016371 // NVD: CVE-2018-21190

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21190
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21190
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016371
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-28235
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202004-2253
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2018-21190
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21190
severity:	MEDIUM
baseScore:	5.2
vectorString:	AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	5.1
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.1
NVD:	JVNDB-2018-016371
severity:	MEDIUM
baseScore:	5.2
vectorString:	AV:A/AC:L/AU:S/C:P/I:P/A:P
accessVector:	ADJACENT NETWORK
accessComplexity:	LOW
authentication:	SINGLE
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-2020-28235
severity:	HIGH
baseScore:	7.2
vectorString:	AV:A/AC:L/AU:M/C:C/I:C/A:C
accessVector:	ADJACENT_NETWORK
accessComplexity:	LOW
authentication:	MULTIPLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	4.1
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2018-21190
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.1
Trust: 1.0
cve@mitre.org:	CVE-2018-21190
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.0
Trust: 1.0
NVD:	JVNDB-2018-016371
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2020-28235 // VULMON: CVE-2018-21190 // JVNDB: JVNDB-2018-016371 // CNNVD: CNNVD-202004-2253 // NVD: CVE-2018-21190 // NVD: CVE-2018-21190

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016371 // NVD: CVE-2018-21190

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2253

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2253

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016371

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers and Gateways, PSV-2017-2605	url:	https://kb.netgear.com/000055167/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2605	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-28235)	url:	https://www.cnvd.org.cn/patchInfo/show/217479	Trust: 0.6

sources: CNVD: CNVD-2020-28235 // JVNDB: JVNDB-2018-016371

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21190	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016371	Trust: 0.8
db:	CNVD	id:	CNVD-2020-28235	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2253	Trust: 0.6
db:	VULMON	id:	CVE-2018-21190	Trust: 0.1

sources: CNVD: CNVD-2020-28235 // VULMON: CVE-2018-21190 // JVNDB: JVNDB-2018-016371 // CNNVD: CNNVD-202004-2253 // NVD: CVE-2018-21190

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21190	Trust: 2.0
url:	https://kb.netgear.com/000055167/security-advisory-for-post-authentication-stack-overflow-on-some-routers-and-gateways-psv-2017-2605	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21190	Trust: 0.8
url:	https://cwe.mitre.org/data/definitions/787.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: CNVD: CNVD-2020-28235 // VULMON: CVE-2018-21190 // JVNDB: JVNDB-2018-016371 // CNNVD: CNNVD-202004-2253 // NVD: CVE-2018-21190

SOURCES

db:	CNVD	id:	CNVD-2020-28235
db:	VULMON	id:	CVE-2018-21190
db:	JVNDB	id:	JVNDB-2018-016371
db:	CNNVD	id:	CNNVD-202004-2253
db:	NVD	id:	CVE-2018-21190

LAST UPDATE DATE

2024-11-23T23:04:24.738000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-28235	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21190	date:	2020-05-01T00:00:00
db:	JVNDB	id:	JVNDB-2018-016371	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2253	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21190	date:	2024-11-21T04:03:07.983

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-28235	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21190	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016371	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2253	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21190	date:	2020-04-28T15:15:12.597