Details of VAR-202004-1659

ID

VAR-202004-1659

CVE

CVE-2018-21213

TITLE

plural NETGEAR Classic buffer overflow vulnerability in the product

Trust: 0.8

sources: JVNDB: JVNDB-2018-016354

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, D7800 before 1.0.1.30, R6100 before 1.0.1.20, R7500 before 1.0.0.118, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50. 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, D7800 prior to 1.0.1.30, R6100 prior to 1.0.1.20, R7500 prior to 1.0.0.118, R7500v2 prior to 1.0.3.24, R7800 prior to 1.0.2.40, R9000 prior to 1.0.2.52, WNDR3700v4 prior to 1.0.2.96, WNDR4300 prior to 1.0.2.98, WNDR4300v2 prior to 1.0.0.50, and WNDR4500v3 prior to 1.0.0.50

Trust: 2.25

sources: NVD: CVE-2018-21213 // JVNDB: JVNDB-2018-016354 // CNVD: CNVD-2021-46565 // VULMON: CVE-2018-21213

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-46565

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:	1.0.0.118	Trust: 1.6
vendor:	netgear	model:	d7800	scope:	lt	version:	1.0.1.30	Trust: 1.6
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.2.98	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:	wndr3700	scope:	lt	version:	1.0.2.96	Trust: 1.0
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.24	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:	d7800	scope:	eq	version:	1.0.1.30	Trust: 0.8
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.20	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.118	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.3.24	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:	1.0.2.96	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.0.50	Trust: 0.8
vendor:	netgear	model:	wndr4300	scope:	eq	version:	1.0.2.98	Trust: 0.8
vendor:	netgear	model:	wndr4500	scope:	eq	version:	1.0.0.50	Trust: 0.8
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.24	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:	wndr3700v4	scope:	lt	version:	1.0.2.96	Trust: 0.6

sources: CNVD: CNVD-2021-46565 // JVNDB: JVNDB-2018-016354 // NVD: CVE-2018-21213

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21213
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2018-21213
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2018-016354
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-46565
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2285
value:	HIGH
Trust: 0.6
VULMON:	CVE-2018-21213
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21213
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-2018-016354
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-2021-46565
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-2018-21213
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-2018-21213
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-2018-016354
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-2021-46565 // VULMON: CVE-2018-21213 // JVNDB: JVNDB-2018-016354 // CNNVD: CNNVD-202004-2285 // NVD: CVE-2018-21213 // NVD: CVE-2018-21213

PROBLEMTYPE DATA

problemtype:

CWE-120

Trust: 1.8

sources: JVNDB: JVNDB-2018-016354 // NVD: CVE-2018-21213

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2285

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2285

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016354

PATCH

title:	Security Advisory for Pre-Authentication Buffer Overflow on Some Routers and Gateways, PSV-2017-2489	url:	https://kb.netgear.com/000055124/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2489	Trust: 0.8
title:	Patch for Buffer overflow vulnerabilities in multiple NETGEAR products (CNVD-2021-46565)	url:	https://www.cnvd.org.cn/patchInfo/show/276366	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117377	Trust: 0.6

sources: CNVD: CNVD-2021-46565 // JVNDB: JVNDB-2018-016354 // CNNVD: CNNVD-202004-2285

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21213	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016354	Trust: 0.8
db:	CNVD	id:	CNVD-2021-46565	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2285	Trust: 0.6
db:	VULMON	id:	CVE-2018-21213	Trust: 0.1

sources: CNVD: CNVD-2021-46565 // VULMON: CVE-2018-21213 // JVNDB: JVNDB-2018-016354 // CNNVD: CNNVD-202004-2285 // NVD: CVE-2018-21213

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21213	Trust: 2.0
url:	https://kb.netgear.com/000055124/security-advisory-for-pre-authentication-buffer-overflow-on-some-routers-and-gateways-psv-2017-2489	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21213	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-2021-46565 // VULMON: CVE-2018-21213 // JVNDB: JVNDB-2018-016354 // CNNVD: CNNVD-202004-2285 // NVD: CVE-2018-21213

SOURCES

db:	CNVD	id:	CNVD-2021-46565
db:	VULMON	id:	CVE-2018-21213
db:	JVNDB	id:	JVNDB-2018-016354
db:	CNNVD	id:	CNNVD-202004-2285
db:	NVD	id:	CVE-2018-21213

LAST UPDATE DATE

2024-11-23T23:04:24.797000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-46565	date:	2021-07-02T00:00:00
db:	VULMON	id:	CVE-2018-21213	date:	2020-05-01T00:00:00
db:	JVNDB	id:	JVNDB-2018-016354	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2285	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21213	date:	2024-11-21T04:03:11.563

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-46565	date:	2021-07-01T00:00:00
db:	VULMON	id:	CVE-2018-21213	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016354	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2285	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21213	date:	2020-04-28T16:15:14.060