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ID

VAR-202207-0317


CVE

CVE-2022-21768


TITLE

Bluetooth Buffer Overflow Vulnerability in Multiple MediaTek Chips (CNVD-2022-66253)

Trust: 0.6

sources: CNVD: CNVD-2022-66253

DESCRIPTION

In Bluetooth, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06784351; Issue ID: ALPS06784351. MediaTek Inc. is the world's fourth largest fab semiconductor company, with a leading position in mobile terminals, smart home applications, wireless connectivity technologies and IoT products, with approximately 1.5 billion units a year End products with built-in MediaTek chips are available worldwide. Several MediaTek chips have a buffer overflow vulnerability in Bluetooth that stems from a lack of bounds checking in Bluetooth. An attacker could exploit the vulnerability to escalate local privileges without requiring user interaction

Trust: 1.53

sources: NVD: CVE-2022-21768 // CNVD: CNVD-2022-66253 // VULMON: CVE-2022-21768

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-66253

AFFECTED PRODUCTS

vendor:googlemodel:androidscope:eqversion:12.0

Trust: 1.0

vendor:googlemodel:androidscope:eqversion:9.0

Trust: 1.0

vendor:googlemodel:androidscope:eqversion:11.0

Trust: 1.0

vendor:googlemodel:androidscope:eqversion:8.1

Trust: 1.0

vendor:googlemodel:androidscope:eqversion:10.0

Trust: 1.0

vendor:mediatekmodel:mt8365 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8365 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8385 android10.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8385 android9.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8167 android10.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8167 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8167 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8167 android9.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8183 android10.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8183 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8183 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8183 android9.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8362a android10.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8362a android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8362a android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8362a android9.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8365 android10.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8365 android9.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8385 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8385 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8175 android10.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8175 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8175 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8175 android9.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8167s androidscope:eqversion:8.1

Trust: 0.6

vendor:mediatekmodel:mt8175 androidscope:eqversion:8.1

Trust: 0.6

vendor:mediatekmodel:mt8183 androidscope:eqversion:8.1

Trust: 0.6

vendor:mediatekmodel:mt8362a androidscope:eqversion:8.1

Trust: 0.6

vendor:mediatekmodel:mt8365 androidscope:eqversion:8.1

Trust: 0.6

vendor:mediatekmodel:mt8385 androidscope:eqversion:8.1

Trust: 0.6

sources: CNVD: CNVD-2022-66253 // NVD: CVE-2022-21768

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-21768
value: HIGH

Trust: 1.0

CNVD: CNVD-2022-66253
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202207-474
value: HIGH

Trust: 0.6

VULMON: CVE-2022-21768
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2022-21768
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

CNVD: CNVD-2022-66253
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2022-21768
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

sources: CNVD: CNVD-2022-66253 // VULMON: CVE-2022-21768 // CNNVD: CNNVD-202207-474 // NVD: CVE-2022-21768

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

sources: NVD: CVE-2022-21768

THREAT TYPE

remote or local

Trust: 0.6

sources: CNNVD: CNNVD-202207-474

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202207-474

PATCH

title:Patch for Bluetooth Buffer Overflow Vulnerability in Multiple MediaTek Chips (CNVD-2022-66253)url:https://www.cnvd.org.cn/patchInfo/show/353651

Trust: 0.6

title:Google Android Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=200001

Trust: 0.6

sources: CNVD: CNVD-2022-66253 // CNNVD: CNNVD-202207-474

EXTERNAL IDS

db:NVDid:CVE-2022-21768

Trust: 2.3

db:CNVDid:CNVD-2022-66253

Trust: 0.6

db:AUSCERTid:ESB-2022.3342

Trust: 0.6

db:CS-HELPid:SB2022070825

Trust: 0.6

db:CNNVDid:CNNVD-202207-474

Trust: 0.6

db:VULMONid:CVE-2022-21768

Trust: 0.1

sources: CNVD: CNVD-2022-66253 // VULMON: CVE-2022-21768 // CNNVD: CNNVD-202207-474 // NVD: CVE-2022-21768

REFERENCES

url:https://corp.mediatek.com/product-security-bulletin/july-2022

Trust: 2.3

url:https://vigilance.fr/vulnerability/google-android-pixel-multiple-vulnerabilities-of-july-2022-38750

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2022.3342

Trust: 0.6

url:https://cxsecurity.com/cveshow/cve-2022-21768/

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2022070825

Trust: 0.6

url:https://source.android.com/security/bulletin/2022-07-01

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/787.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2022-66253 // VULMON: CVE-2022-21768 // CNNVD: CNNVD-202207-474 // NVD: CVE-2022-21768

SOURCES

db:CNVDid:CNVD-2022-66253
db:VULMONid:CVE-2022-21768
db:CNNVDid:CNNVD-202207-474
db:NVDid:CVE-2022-21768

LAST UPDATE DATE

2024-08-14T12:31:13.138000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-66253date:2022-09-28T00:00:00
db:VULMONid:CVE-2022-21768date:2022-07-14T00:00:00
db:CNNVDid:CNNVD-202207-474date:2022-07-15T00:00:00
db:NVDid:CVE-2022-21768date:2022-07-14T10:02:07.660

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-66253date:2022-09-29T00:00:00
db:VULMONid:CVE-2022-21768date:2022-07-06T00:00:00
db:CNNVDid:CNNVD-202207-474date:2022-07-06T00:00:00
db:NVDid:CVE-2022-21768date:2022-07-06T14:15:17.337