Details of VAR-202004-0746

ID

VAR-202004-0746

CVE

CVE-2019-20766

TITLE

NETGEAR R7800 Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2019-015301

DESCRIPTION

NETGEAR R7800 devices before 1.0.2.52 are affected by a stack-based buffer overflow by an authenticated user. NETGEAR R7800 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 R7800 is a wireless router of NETGEAR. There is a buffer error vulnerability in ETGEAR R7800 before 1.0.2.52. 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-2019-20766 // JVNDB: JVNDB-2019-015301 // CNVD: CNVD-2020-23428

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-23428

AFFECTED PRODUCTS

vendor:	netgear	model:	r7800	scope:	lt	version:	1.0.2.52	Trust: 1.6
vendor:	netgear	model:	r7800	scope:	eq	version:	1.0.2.52	Trust: 0.8

sources: CNVD: CNVD-2020-23428 // JVNDB: JVNDB-2019-015301 // NVD: CVE-2019-20766

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20766
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2019-20766
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2019-015301
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-23428
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1377
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2019-20766
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: 1.0
NVD:	JVNDB-2019-015301
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-2020-23428
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-2019-20766
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-2019-20766
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-2019-015301
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-2020-23428 // JVNDB: JVNDB-2019-015301 // CNNVD: CNNVD-202004-1377 // NVD: CVE-2019-20766 // NVD: CVE-2019-20766

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-015301 // NVD: CVE-2019-20766

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1377

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1377

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015301

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on R7800, PSV-2018-0135	url:	https://kb.netgear.com/000060633/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-R7800-PSV-2018-0135	Trust: 0.8
title:	Patch for NETGEAR R7800 buffer overflow vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/214435	Trust: 0.6
title:	NETGEAR R7800 Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=115190	Trust: 0.6

sources: CNVD: CNVD-2020-23428 // JVNDB: JVNDB-2019-015301 // CNNVD: CNNVD-202004-1377

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20766	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015301	Trust: 0.8
db:	CNVD	id:	CNVD-2020-23428	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1377	Trust: 0.6

sources: CNVD: CNVD-2020-23428 // JVNDB: JVNDB-2019-015301 // CNNVD: CNNVD-202004-1377 // NVD: CVE-2019-20766

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20766	Trust: 2.0
url:	https://kb.netgear.com/000060633/security-advisory-for-post-authentication-stack-overflow-on-r7800-psv-2018-0135	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20766	Trust: 0.8

sources: CNVD: CNVD-2020-23428 // JVNDB: JVNDB-2019-015301 // CNNVD: CNNVD-202004-1377 // NVD: CVE-2019-20766

SOURCES

db:	CNVD	id:	CNVD-2020-23428
db:	JVNDB	id:	JVNDB-2019-015301
db:	CNNVD	id:	CNNVD-202004-1377
db:	NVD	id:	CVE-2019-20766

LAST UPDATE DATE

2024-11-23T22:11:31.216000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-23428	date:	2020-04-18T00:00:00
db:	JVNDB	id:	JVNDB-2019-015301	date:	2020-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202004-1377	date:	2021-01-05T00:00:00
db:	NVD	id:	CVE-2019-20766	date:	2024-11-21T04:39:18.623

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-23428	date:	2020-04-17T00:00:00
db:	JVNDB	id:	JVNDB-2019-015301	date:	2020-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202004-1377	date:	2020-04-16T00:00:00
db:	NVD	id:	CVE-2019-20766	date:	2020-04-16T22:15:13.620