Details of VAR-202004-1693

ID

VAR-202004-1693

CVE

CVE-2018-21182

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016366

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, and WNDR4300 before 1.0.2.94. 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 R9000 is a wireless router of NETGEAR. The vulnerability stems from the fact that the network system or product performs an operation on the memory, and the data boundary is not correctly verified, resulting in an incorrect read and write operation to other associated memory locations. The attacker The vulnerability can be exploited to cause buffer overflow or heap overflow. This affects R7800 prior to 1.0.2.40, R9000 prior to 1.0.2.52, WNDR3700v4 prior to 1.0.2.92, and WNDR4300 prior to 1.0.2.94

Trust: 2.25

sources: NVD: CVE-2018-21182 // JVNDB: JVNDB-2018-016366 // CNVD: CNVD-2020-28242 // VULMON: CVE-2018-21182

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-28242

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:	wndr4300	scope:	lt	version:	1.0.2.94	Trust: 1.6
vendor:	netgear	model:	wndr3700	scope:	lt	version:	1.0.2.92	Trust: 1.0
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:	wndr3700v4	scope:	lt	version:	1.0.2.92	Trust: 0.6

sources: CNVD: CNVD-2020-28242 // JVNDB: JVNDB-2018-016366 // NVD: CVE-2018-21182

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21182
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21182
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016366
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-28242
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2241
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2018-21182
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21182
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-2018-016366
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-2020-28242
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: 0.6

nvd@nist.gov:	CVE-2018-21182
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-2018-21182
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-2018-016366
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-2020-28242 // VULMON: CVE-2018-21182 // JVNDB: JVNDB-2018-016366 // CNNVD: CNNVD-202004-2241 // NVD: CVE-2018-21182 // NVD: CVE-2018-21182

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016366 // NVD: CVE-2018-21182

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2241

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2241

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016366

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers, PSV-2017-2617	url:	https://kb.netgear.com/000055176/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2017-2617	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-28242)	url:	https://www.cnvd.org.cn/patchInfo/show/217489	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117334	Trust: 0.6

sources: CNVD: CNVD-2020-28242 // JVNDB: JVNDB-2018-016366 // CNNVD: CNNVD-202004-2241

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21182	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016366	Trust: 0.8
db:	CNVD	id:	CNVD-2020-28242	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2241	Trust: 0.6
db:	VULMON	id:	CVE-2018-21182	Trust: 0.1

sources: CNVD: CNVD-2020-28242 // VULMON: CVE-2018-21182 // JVNDB: JVNDB-2018-016366 // CNNVD: CNNVD-202004-2241 // NVD: CVE-2018-21182

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21182	Trust: 2.0
url:	https://kb.netgear.com/000055176/security-advisory-for-post-authentication-stack-overflow-on-some-routers-psv-2017-2617	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21182	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-2020-28242 // VULMON: CVE-2018-21182 // JVNDB: JVNDB-2018-016366 // CNNVD: CNNVD-202004-2241 // NVD: CVE-2018-21182

SOURCES

db:	CNVD	id:	CNVD-2020-28242
db:	VULMON	id:	CVE-2018-21182
db:	JVNDB	id:	JVNDB-2018-016366
db:	CNNVD	id:	CNNVD-202004-2241
db:	NVD	id:	CVE-2018-21182

LAST UPDATE DATE

2024-11-23T22:55:10.119000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-28242	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21182	date:	2020-05-01T00:00:00
db:	JVNDB	id:	JVNDB-2018-016366	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2241	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21182	date:	2024-11-21T04:03:06.713

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-28242	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21182	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016366	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2241	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21182	date:	2020-04-28T13:15:12.543