Details of VAR-202004-0744

ID

VAR-202004-0744

CVE

CVE-2019-20764

TITLE

NETGEAR R7800 Out-of-bounds write vulnerabilities in devices

Trust: 0.8

sources: JVNDB: JVNDB-2019-015299

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. 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-2019-20764 // JVNDB: JVNDB-2019-015299 // CNVD: CNVD-2020-23426

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2020-23426

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-2020-23426 // JVNDB: JVNDB-2019-015299 // NVD: CVE-2019-20764

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2019-20764
value:	MEDIUM
Trust: 1.0
cve@mitre.org:	CVE-2019-20764
value:	MEDIUM
Trust: 1.0
NVD:	JVNDB-2019-015299
value:	MEDIUM
Trust: 0.8
CNVD:	CNVD-2020-23426
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202004-1375
value:	MEDIUM
Trust: 0.6

nvd@nist.gov:	CVE-2019-20764
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-2019-015299
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-2020-23426
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-2019-20764
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-2019-20764
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-2019-015299
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-2020-23426 // JVNDB: JVNDB-2019-015299 // CNNVD: CNNVD-202004-1375 // NVD: CVE-2019-20764 // NVD: CVE-2019-20764

PROBLEMTYPE DATA

problemtype:

CWE-787

Trust: 1.8

sources: JVNDB: JVNDB-2019-015299 // NVD: CVE-2019-20764

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202004-1375

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202004-1375

CONFIGURATIONS

sources: JVNDB: JVNDB-2019-015299

PATCH

title:	Security Advisory for Post-Authentication Stack Overflow on R7800, PSV-2018-0137	url:	https://kb.netgear.com/000060635/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-R7800-PSV-2018-0137	Trust: 0.8
title:	Patch for NETGEAR R7800 buffer overflow vulnerability (CNVD-2020-23426)	url:	https://www.cnvd.org.cn/patchInfo/show/214445	Trust: 0.6
title:	NETGEAR R7800 Buffer error vulnerability fix	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=115186	Trust: 0.6

sources: CNVD: CNVD-2020-23426 // JVNDB: JVNDB-2019-015299 // CNNVD: CNNVD-202004-1375

EXTERNAL IDS

db:	NVD	id:	CVE-2019-20764	Trust: 3.0
db:	JVNDB	id:	JVNDB-2019-015299	Trust: 0.8
db:	CNVD	id:	CNVD-2020-23426	Trust: 0.6
db:	CNNVD	id:	CNNVD-202004-1375	Trust: 0.6

sources: CNVD: CNVD-2020-23426 // JVNDB: JVNDB-2019-015299 // CNNVD: CNNVD-202004-1375 // NVD: CVE-2019-20764

REFERENCES

url:	https://nvd.nist.gov/vuln/detail/cve-2019-20764	Trust: 2.0
url:	https://kb.netgear.com/000060635/security-advisory-for-post-authentication-stack-overflow-on-r7800-psv-2018-0137	Trust: 1.6
url:	https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-20764	Trust: 0.8

sources: CNVD: CNVD-2020-23426 // JVNDB: JVNDB-2019-015299 // CNNVD: CNNVD-202004-1375 // NVD: CVE-2019-20764

SOURCES

db:	CNVD	id:	CNVD-2020-23426
db:	JVNDB	id:	JVNDB-2019-015299
db:	CNNVD	id:	CNNVD-202004-1375
db:	NVD	id:	CVE-2019-20764

LAST UPDATE DATE

2024-11-23T22:21:13.297000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2020-23426	date:	2020-04-18T00:00:00
db:	JVNDB	id:	JVNDB-2019-015299	date:	2020-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202004-1375	date:	2020-04-26T00:00:00
db:	NVD	id:	CVE-2019-20764	date:	2024-11-21T04:39:18.313

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2020-23426	date:	2020-04-17T00:00:00
db:	JVNDB	id:	JVNDB-2019-015299	date:	2020-05-11T00:00:00
db:	CNNVD	id:	CNNVD-202004-1375	date:	2020-04-16T00:00:00
db:	NVD	id:	CVE-2019-20764	date:	2020-04-16T22:15:13.510