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ID

VAR-202110-1411


CVE

CVE-2021-1821


TITLE

watchOS  and  macOS  Vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2021-014403

DESCRIPTION

A logic issue was addressed with improved state management. This issue is fixed in watchOS 7.6, macOS Big Sur 11.5. Visiting a maliciously crafted webpage may lead to a system denial of service. watchOS and macOS Exists in unspecified vulnerabilities.Service operation interruption (DoS) It may be in a state

Trust: 1.8

sources: NVD: CVE-2021-1821 // JVNDB: JVNDB-2021-014403 // VULHUB: VHN-376481 // VULMON: CVE-2021-1821

AFFECTED PRODUCTS

vendor:applemodel:watchosscope:ltversion:7.6

Trust: 1.0

vendor:applemodel:macosscope:ltversion:11.5

Trust: 1.0

vendor:アップルmodel:macosscope: - version: -

Trust: 0.8

vendor:アップルmodel:watchosscope: - version: -

Trust: 0.8

sources: JVNDB: JVNDB-2021-014403 // NVD: CVE-2021-1821

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2021-1821
value: MEDIUM

Trust: 1.0

NVD: CVE-2021-1821
value: MEDIUM

Trust: 0.8

CNNVD: CNNVD-202107-2220
value: MEDIUM

Trust: 0.6

VULHUB: VHN-376481
value: HIGH

Trust: 0.1

VULMON: CVE-2021-1821
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2021-1821
severity: HIGH
baseScore: 7.1
vectorString: AV:N/AC:M/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

VULHUB: VHN-376481
severity: HIGH
baseScore: 7.1
vectorString: AV:N/AC:M/AU:N/C:N/I:N/A:C
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: COMPLETE
exploitabilityScore: 8.6
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2021-1821
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2021-1821
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULHUB: VHN-376481 // VULMON: CVE-2021-1821 // JVNDB: JVNDB-2021-014403 // CNNVD: CNNVD-202107-2220 // NVD: CVE-2021-1821

PROBLEMTYPE DATA

problemtype:NVD-CWE-noinfo

Trust: 1.0

problemtype:Lack of information (CWE-noinfo) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2021-014403 // NVD: CVE-2021-1821

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202107-2220

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-202107-2220

PATCH

title:HT212602 Apple  Security updateurl:https://support.apple.com/en-us/HT212602

Trust: 0.8

title:Apple watchOS Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=168406

Trust: 0.6

sources: JVNDB: JVNDB-2021-014403 // CNNVD: CNNVD-202107-2220

EXTERNAL IDS

db:NVDid:CVE-2021-1821

Trust: 3.4

db:JVNDBid:JVNDB-2021-014403

Trust: 0.8

db:CNNVDid:CNNVD-202107-2220

Trust: 0.6

db:VULHUBid:VHN-376481

Trust: 0.1

db:VULMONid:CVE-2021-1821

Trust: 0.1

sources: VULHUB: VHN-376481 // VULMON: CVE-2021-1821 // JVNDB: JVNDB-2021-014403 // CNNVD: CNNVD-202107-2220 // NVD: CVE-2021-1821

REFERENCES

url:https://support.apple.com/en-us/ht212602

Trust: 2.4

url:https://support.apple.com/en-us/ht212605

Trust: 1.8

url:https://nvd.nist.gov/vuln/detail/cve-2021-1821

Trust: 0.8

url:https://cwe.mitre.org/data/definitions/.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: VULHUB: VHN-376481 // VULMON: CVE-2021-1821 // JVNDB: JVNDB-2021-014403 // CNNVD: CNNVD-202107-2220 // NVD: CVE-2021-1821

SOURCES

db:VULHUBid:VHN-376481
db:VULMONid:CVE-2021-1821
db:JVNDBid:JVNDB-2021-014403
db:CNNVDid:CNNVD-202107-2220
db:NVDid:CVE-2021-1821

LAST UPDATE DATE

2024-08-14T15:33:02.214000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-376481date:2021-11-02T00:00:00
db:VULMONid:CVE-2021-1821date:2021-11-02T00:00:00
db:JVNDBid:JVNDB-2021-014403date:2022-10-18T01:56:00
db:CNNVDid:CNNVD-202107-2220date:2021-11-03T00:00:00
db:NVDid:CVE-2021-1821date:2021-11-02T15:17:51.093

SOURCES RELEASE DATE

db:VULHUBid:VHN-376481date:2021-10-28T00:00:00
db:VULMONid:CVE-2021-1821date:2021-10-28T00:00:00
db:JVNDBid:JVNDB-2021-014403date:2022-10-18T00:00:00
db:CNNVDid:CNNVD-202107-2220date:2021-07-21T00:00:00
db:NVDid:CVE-2021-1821date:2021-10-28T19:15:08.667