Details of VAR-202004-1710

ID

VAR-202004-1710

CVE

CVE-2018-21199

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2018-016362

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects D7800 before 1.0.1.30, R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7500v2 before 1.0.3.24, R7800 before 1.0.2.40, R9000 before 1.0.2.52, and WNDR4300 before 1.0.2.98. 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 D7800, etc. are all products of NETGEAR. NETGEAR D7800 is a wireless modem. NETGEAR R7500 is a wireless router. NETGEAR R6100 is a wireless router. 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 D7800 prior to 1.0.1.30, R6100 prior to 1.0.1.22, R7500 prior to 1.0.0.122, R7500v2 prior to 1.0.3.24, R7800 prior to 1.0.2.40, R9000 prior to 1.0.2.52, and WNDR4300 prior to 1.0.2.98

Trust: 2.25

sources: NVD: CVE-2018-21199 // JVNDB: JVNDB-2018-016362 // CNVD: CNVD-2020-28275 // VULMON: CVE-2018-21199

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-28275

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:	d7800	scope:	lt	version:	1.0.1.30	Trust: 1.6
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.0.122	Trust: 1.6
vendor:	netgear	model:	r6100	scope:	lt	version:	1.0.1.22	Trust: 1.6
vendor:	netgear	model:	wndr4300	scope:	lt	version:	1.0.2.98	Trust: 1.0
vendor:	netgear	model:	r7500	scope:	lt	version:	1.0.3.24	Trust: 1.0
vendor:	netgear	model:	d7800	scope:	eq	version:	1.0.1.30	Trust: 0.8
vendor:	netgear	model:	r6100	scope:	eq	version:	1.0.1.22	Trust: 0.8
vendor:	netgear	model:	r7500	scope:	eq	version:	1.0.0.122	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:	wndr4300	scope:	eq	version:	1.0.2.98	Trust: 0.8
vendor:	netgear	model:	r7500v2	scope:	lt	version:	1.0.3.24	Trust: 0.6

sources: CNVD: CNVD-2020-28275 // JVNDB: JVNDB-2018-016362 // NVD: CVE-2018-21199

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2018-21199
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2018-21199
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2018-016362
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-28275
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-2265
value:	MEDIUM
Trust: 0.6
VULMON:	CVE-2018-21199
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2018-21199
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-2018-016362
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-2020-28275
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-2018-21199
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-2018-21199
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-2018-016362
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-2020-28275 // VULMON: CVE-2018-21199 // JVNDB: JVNDB-2018-016362 // CNNVD: CNNVD-202004-2265 // NVD: CVE-2018-21199 // NVD: CVE-2018-21199

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2018-016362 // NVD: CVE-2018-21199

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-2265

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-2265

CONFIGURATIONS

sources: JVNDB: JVNDB-2018-016362

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on Some Routers and Gateways, PSV-2017-2593	url:	https://kb.netgear.com/000055150/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2593	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-28275)	url:	https://www.cnvd.org.cn/patchInfo/show/217545	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=117357	Trust: 0.6

sources: CNVD: CNVD-2020-28275 // JVNDB: JVNDB-2018-016362 // CNNVD: CNNVD-202004-2265

EXTERNAL IDS

db:	NVD	id:	CVE-2018-21199	Trust: 3.1
db:	JVNDB	id:	JVNDB-2018-016362	Trust: 0.8
db:	CNVD	id:	CNVD-2020-28275	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-2265	Trust: 0.6
db:	VULMON	id:	CVE-2018-21199	Trust: 0.1

sources: CNVD: CNVD-2020-28275 // VULMON: CVE-2018-21199 // JVNDB: JVNDB-2018-016362 // CNNVD: CNNVD-202004-2265 // NVD: CVE-2018-21199

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2018-21199	Trust: 2.0
url:	https://kb.netgear.com/000055150/security-advisory-for-post-authentication-stack-overflow-on-some-routers-and-gateways-psv-2017-2593	Trust: 1.7
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2018-21199	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-2020-28275 // VULMON: CVE-2018-21199 // JVNDB: JVNDB-2018-016362 // CNNVD: CNNVD-202004-2265 // NVD: CVE-2018-21199

SOURCES

db:	CNVD	id:	CNVD-2020-28275
db:	VULMON	id:	CVE-2018-21199
db:	JVNDB	id:	JVNDB-2018-016362
db:	CNNVD	id:	CNNVD-202004-2265
db:	NVD	id:	CVE-2018-21199

LAST UPDATE DATE

2024-11-23T22:21:12.364000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-28275	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21199	date:	2020-05-05T00:00:00
db:	JVNDB	id:	JVNDB-2018-016362	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2265	date:	2020-05-06T00:00:00
db:	NVD	id:	CVE-2018-21199	date:	2024-11-21T04:03:09.390

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-28275	date:	2020-05-14T00:00:00
db:	VULMON	id:	CVE-2018-21199	date:	2020-04-28T00:00:00
db:	JVNDB	id:	JVNDB-2018-016362	date:	2020-06-01T00:00:00
db:	CNNVD	id:	CNNVD-202004-2265	date:	2020-04-28T00:00:00
db:	NVD	id:	CVE-2018-21199	date:	2020-04-28T16:15:13.153