Details of VAR-202004-0880

ID

VAR-202004-0880

CVE

CVE-2019-20640

TITLE

plural NETGEAR Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2019-015447

DESCRIPTION

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6200 before 1.1.00.32, D7000 before 1.0.1.68, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.38, R6050 before 1.0.1.18, R6080 before 1.0.0.38, R6120 before 1.0.0.46, R6220 before 1.1.0.80, R6260 before 1.1.0.40, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900v2 before 1.2.0.36, WNR2020 before 1.1.0.62, and XR500 before 2.3.2.32. 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 D3600, etc. are all products of NETGEAR. NETGEAR D3600 is a wireless modem. NETGEAR JR6150 is a wireless router. NETGEAR PR2000 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

Trust: 2.16

sources: NVD: CVE-2019-20640 // JVNDB: JVNDB-2019-015447 // CNVD: CNVD-2020-26948

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-26948

AFFECTED PRODUCTS

vendor:	netgear	model:	d7000	scope:	lt	version:	1.0.1.68	Trust: 1.6
vendor:	netgear	model:	jr6150	scope:	lt	version:	1.0.1.18	Trust: 1.6
vendor:	netgear	model:	pr2000	scope:	lt	version:	1.0.0.28	Trust: 1.6
vendor:	netgear	model:	r6050	scope:	lt	version:	1.0.1.18	Trust: 1.6
vendor:	netgear	model:	r6120	scope:	lt	version:	1.0.0.46	Trust: 1.6
vendor:	netgear	model:	r6220	scope:	lt	version:	1.1.0.80	Trust: 1.6
vendor:	netgear	model:	r6800	scope:	lt	version:	1.2.0.36	Trust: 1.6
vendor:	netgear	model:	xr500	scope:	lt	version:	2.3.2.32	Trust: 1.6
vendor:	netgear	model:	d3600	scope:	lt	version:	1.0.0.76	Trust: 1.6
vendor:	netgear	model:	d6000	scope:	lt	version:	1.0.0.76	Trust: 1.6
vendor:	netgear	model:	d6200	scope:	lt	version:	1.1.00.32	Trust: 1.6
vendor:	netgear	model:	r6020	scope:	lt	version:	1.0.0.38	Trust: 1.6
vendor:	netgear	model:	r6080	scope:	lt	version:	1.0.0.38	Trust: 1.6
vendor:	netgear	model:	r6260	scope:	lt	version:	1.1.0.40	Trust: 1.6
vendor:	netgear	model:	wnr2020	scope:	lt	version:	1.1.0.62	Trust: 1.6
vendor:	netgear	model:	r6900	scope:	lt	version:	1.2.0.36	Trust: 1.0
vendor:	netgear	model:	r6700	scope:	lt	version:	1.2.0.36	Trust: 1.0
vendor:	netgear	model:	d3600	scope:	eq	version:	1.0.0.76	Trust: 0.8
vendor:	netgear	model:	d6000	scope:	eq	version:	1.0.0.76	Trust: 0.8
vendor:	netgear	model:	d6200	scope:	eq	version:	1.1.00.32	Trust: 0.8
vendor:	netgear	model:	d7000	scope:	eq	version:	1.0.1.68	Trust: 0.8
vendor:	netgear	model:	jr6150	scope:	eq	version:	1.0.1.18	Trust: 0.8
vendor:	netgear	model:	pr2000	scope:	eq	version:	1.0.0.28	Trust: 0.8
vendor:	netgear	model:	r6020	scope:	eq	version:	1.0.0.38	Trust: 0.8
vendor:	netgear	model:	r6050	scope:	eq	version:	1.0.1.18	Trust: 0.8
vendor:	netgear	model:	r6080	scope:	eq	version:	1.0.0.38	Trust: 0.8
vendor:	netgear	model:	r6120	scope:	eq	version:	1.0.0.46	Trust: 0.8

sources: CNVD: CNVD-2020-26948 // JVNDB: JVNDB-2019-015447 // NVD: CVE-2019-20640

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20640
value:	HIGH
Trust: 1.0
cve@mitre.org:	CVE-2019-20640
value:	HIGH
Trust: 1.0
NVD:	JVNDB-2019-015447
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2020-26948
value:	HIGH
Trust: 0.6
CNNVD:	CNNVD-202004-1246
value:	HIGH
Trust: 0.6

nvd@nist.gov:	CVE-2019-20640
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: 1.0
NVD:	JVNDB-2019-015447
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-2020-26948
severity:	HIGH
baseScore:	7.5
vectorString:	AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	PARTIAL
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	6.4
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2019-20640
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-2019-20640
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-2019-015447
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-2020-26948 // JVNDB: JVNDB-2019-015447 // CNNVD: CNNVD-202004-1246 // NVD: CVE-2019-20640 // NVD: CVE-2019-20640

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-015447 // NVD: CVE-2019-20640

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1246

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1246

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015447

PATCH

title:	Security Advisory for Pre-Authentication Stack Overflow on Some Routers and Gateways, PSV-2018-0304	url:	https://kb.netgear.com/000061504/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2018-0304	Trust: 0.8
title:	Patch for Multiple NETGEAR product buffer overflow vulnerabilities (CNVD-2020-26948)	url:	https://www.cnvd.org.cn/patchInfo/show/216387	Trust: 0.6
title:	Multiple NETGEAR Product Buffer Error Vulnerability Fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=116541	Trust: 0.6

sources: CNVD: CNVD-2020-26948 // JVNDB: JVNDB-2019-015447 // CNNVD: CNNVD-202004-1246

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20640	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015447	Trust: 0.8
db:	CNVD	id:	CNVD-2020-26948	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1246	Trust: 0.6

sources: CNVD: CNVD-2020-26948 // JVNDB: JVNDB-2019-015447 // CNNVD: CNNVD-202004-1246 // NVD: CVE-2019-20640

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20640	Trust: 2.0
url:	https://kb.netgear.com/000061504/security-advisory-for-pre-authentication-stack-overflow-on-some-routers-and-gateways-psv-2018-0304	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20640	Trust: 0.8

sources: CNVD: CNVD-2020-26948 // JVNDB: JVNDB-2019-015447 // CNNVD: CNNVD-202004-1246 // NVD: CVE-2019-20640

SOURCES

db:	CNVD	id:	CNVD-2020-26948
db:	JVNDB	id:	JVNDB-2019-015447
db:	CNNVD	id:	CNNVD-202004-1246
db:	NVD	id:	CVE-2019-20640

LAST UPDATE DATE

2024-11-23T22:25:33.098000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-26948	date:	2020-05-07T00:00:00
db:	JVNDB	id:	JVNDB-2019-015447	date:	2020-05-20T00:00:00
db:	CNNVD	id:	CNNVD-202004-1246	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2019-20640	date:	2024-11-21T04:38:56.640

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-26948	date:	2020-05-07T00:00:00
db:	JVNDB	id:	JVNDB-2019-015447	date:	2020-05-20T00:00:00
db:	CNNVD	id:	CNNVD-202004-1246	date:	2020-04-15T00:00:00
db:	NVD	id:	CVE-2019-20640	date:	2020-04-15T18:15:14.113