Details of VAR-202104-0565

ID

VAR-202104-0565

CVE

CVE-2021-0240

TITLE

Juniper Networks Junos OS Security hole

Trust: 0.6

sources: CNNVD: CNNVD-202104-1040

DESCRIPTION

On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2. Juniper Networks Junos OS is a set of network operating system of Juniper Networks (Juniper Networks) dedicated to the company's hardware equipment. The operating system provides a secure programming interface and Junos SDK. There is a security vulnerability in Junos OS, and there is no relevant information about this vulnerability at present, please pay attention to CNNVD or manufacturer announcements at any time

Trust: 1.08

sources: NVD: CVE-2021-0240 // VULHUB: VHN-372142 // VULMON: CVE-2021-0240

AFFECTED PRODUCTS

vendor:	juniper	model:	junos	scope:	eq	version:	17.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.1	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	17.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.2	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.1	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.1	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	20.2	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.4	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.2	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	19.3	Trust: 1.0
vendor:	juniper	model:	junos	scope:	eq	version:	18.3	Trust: 1.0

sources: NVD: CVE-2021-0240

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-0240
value:	MEDIUM
Trust: 1.0
sirt@juniper.net:	CVE-2021-0240
value:	HIGH
Trust: 1.0
CNNVD:	CNNVD-202104-1040
value:	MEDIUM
Trust: 0.6
VULHUB:	VHN-372142
value:	LOW
Trust: 0.1
VULMON:	CVE-2021-0240
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-0240
severity:	LOW
baseScore:	2.9
vectorString:	AV:A/AC:M/AU:N/C:N/I:N/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	5.5
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
VULHUB:	VHN-372142
severity:	LOW
baseScore:	2.9
vectorString:	AV:A/AC:M/AU:N/C:N/I:N/A:P
accessVector:	ADJACENT_NETWORK
accessComplexity:	MEDIUM
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	5.5
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1
VULMON:	CVE-2021-0240
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:N/I:N/A:P
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	PARTIAL
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.1

nvd@nist.gov:	CVE-2021-0240
baseSeverity:	MEDIUM
baseScore:	6.5
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	3.6
version:	3.1
Trust: 1.0
sirt@juniper.net:	CVE-2021-0240
baseSeverity:	HIGH
baseScore:	7.4
vectorString:	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	CHANGED
confidentialityImpact:	NONE
integrityImpact:	NONE
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	4.0
version:	3.1
Trust: 1.0

sources: VULHUB: VHN-372142 // VULMON: CVE-2021-0240 // CNNVD: CNNVD-202104-1040 // NVD: CVE-2021-0240 // NVD: CVE-2021-0240

PROBLEMTYPE DATA

problemtype:	CWE-755	Trust: 1.1
problemtype:	CWE-703	Trust: 1.0

sources: VULHUB: VHN-372142 // NVD: CVE-2021-0240

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202104-1040

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202104-1040

PATCH

title:

Juniper Networks Junos OS Security vulnerabilities

url:

http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=148286

Trust: 0.6

sources: CNNVD: CNNVD-202104-1040

EXTERNAL IDS

db:	NVD	id:	CVE-2021-0240	Trust: 1.8
db:	JUNIPER	id:	JSA11168	Trust: 1.8
db:	CNNVD	id:	CNNVD-202104-1040	Trust: 0.6
db:	VULHUB	id:	VHN-372142	Trust: 0.1
db:	VULMON	id:	CVE-2021-0240	Trust: 0.1

sources: VULHUB: VHN-372142 // VULMON: CVE-2021-0240 // CNNVD: CNNVD-202104-1040 // NVD: CVE-2021-0240

REFERENCES

url:	https://kb.juniper.net/jsa11168	Trust: 1.8
url:	https://vigilance.fr/vulnerability/junos-os-multiple-vulnerabilities-35081	Trust: 0.6
url:	https://nvd.nist.gov/vuln/detail/cve-2021-0240	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/755.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1

sources: VULHUB: VHN-372142 // VULMON: CVE-2021-0240 // CNNVD: CNNVD-202104-1040 // NVD: CVE-2021-0240

SOURCES

db:	VULHUB	id:	VHN-372142
db:	VULMON	id:	CVE-2021-0240
db:	CNNVD	id:	CNNVD-202104-1040
db:	NVD	id:	CVE-2021-0240

LAST UPDATE DATE

2024-08-14T13:54:06.206000+00:00

SOURCES UPDATE DATE

db:	VULHUB	id:	VHN-372142	date:	2021-07-23T00:00:00
db:	VULMON	id:	CVE-2021-0240	date:	2021-04-28T00:00:00
db:	CNNVD	id:	CNNVD-202104-1040	date:	2021-08-12T00:00:00
db:	NVD	id:	CVE-2021-0240	date:	2021-07-23T19:09:35.193

SOURCES RELEASE DATE

db:	VULHUB	id:	VHN-372142	date:	2021-04-22T00:00:00
db:	VULMON	id:	CVE-2021-0240	date:	2021-04-22T00:00:00
db:	CNNVD	id:	CNNVD-202104-1040	date:	2021-04-14T00:00:00
db:	NVD	id:	CVE-2021-0240	date:	2021-04-22T20:15:08.977