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ID

VAR-202207-0337


CVE

CVE-2022-21771


TITLE

Race Condition Vulnerability in Multiple MediaTek Chip GED Drivers

Trust: 0.6

sources: CNVD: CNVD-2022-88290

DESCRIPTION

In GED driver, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06641585; Issue ID: ALPS06641585. MediaTek Inc. is the world's fourth-largest foundry semiconductor company. It is in a leading position in the market of mobile terminals, smart home applications, wireless connection technology and Internet of Things products, with about 1.5 billion units a year End products with built-in MediaTek chips are available all over the world. A race condition vulnerability exists in several MediaTek chips. Attackers can exploit this vulnerability to elevate local privileges without user interaction

Trust: 1.53

sources: NVD: CVE-2022-21771 // CNVD: CNVD-2022-88290 // VULMON: CVE-2022-21771

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-88290

AFFECTED PRODUCTS

vendor:googlemodel:androidscope:eqversion:12.0

Trust: 1.0

vendor:googlemodel:androidscope:eqversion:11.0

Trust: 1.0

vendor:mediatekmodel:mt8168 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8168 android12.0scope: - version: -

Trust: 0.6

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

Trust: 0.6

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

Trust: 0.6

vendor:mediatekmodel:mt6580 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6580 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6737 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6737 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6739 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6739 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6761 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6761 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6765 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6765 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6768 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6768 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6779 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6779 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6781 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6781 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6785 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6785 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6833 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6833 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6873 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6873 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6877 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6877 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6883 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6883 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6885 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6885 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6889 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6889 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6983 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6983 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6789 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6789 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6853 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6853 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6879 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6879 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6893 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6893 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6895 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6895 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6735 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6735 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6771 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6771 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6853t android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6853t android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6753 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6753 android12.0scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-88290 // NVD: CVE-2022-21771

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-21771
value: MEDIUM

Trust: 1.0

CNVD: CNVD-2022-88290
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202207-470
value: MEDIUM

Trust: 0.6

VULMON: CVE-2022-21771
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2022-21771
severity: MEDIUM
baseScore: 4.6
vectorString: AV:L/AC:L/AU:N/C:P/I:P/A:P
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 3.9
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

CNVD: CNVD-2022-88290
severity: MEDIUM
baseScore: 4.6
vectorString: AV:L/AC:L/AU:N/C:P/I:P/A:P
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 3.9
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2022-21771
baseSeverity: MEDIUM
baseScore: 6.7
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 0.8
impactScore: 5.9
version: 3.1

Trust: 1.0

sources: CNVD: CNVD-2022-88290 // VULMON: CVE-2022-21771 // CNNVD: CNNVD-202207-470 // NVD: CVE-2022-21771

PROBLEMTYPE DATA

problemtype:CWE-362

Trust: 1.0

sources: NVD: CVE-2022-21771

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202207-470

TYPE

competition condition problem

Trust: 0.6

sources: CNNVD: CNNVD-202207-470

PATCH

title:Patch for Race Condition Vulnerability in Multiple MediaTek Chip GED Driversurl:https://www.cnvd.org.cn/patchInfo/show/354071

Trust: 0.6

title:Google Android Repair measures for the competition condition problem loopholeurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=199244

Trust: 0.6

sources: CNVD: CNVD-2022-88290 // CNNVD: CNNVD-202207-470

EXTERNAL IDS

db:NVDid:CVE-2022-21771

Trust: 2.3

db:CNVDid:CNVD-2022-88290

Trust: 0.6

db:CS-HELPid:SB2022070819

Trust: 0.6

db:CNNVDid:CNNVD-202207-470

Trust: 0.6

db:VULMONid:CVE-2022-21771

Trust: 0.1

sources: CNVD: CNVD-2022-88290 // VULMON: CVE-2022-21771 // CNNVD: CNNVD-202207-470 // NVD: CVE-2022-21771

REFERENCES

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

Trust: 2.3

url:https://cxsecurity.com/cveshow/cve-2022-21771/

Trust: 0.6

url:https://www.cybersecurity-help.cz/vdb/sb2022070819

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/362.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: CNVD: CNVD-2022-88290 // VULMON: CVE-2022-21771 // CNNVD: CNNVD-202207-470 // NVD: CVE-2022-21771

SOURCES

db:CNVDid:CNVD-2022-88290
db:VULMONid:CVE-2022-21771
db:CNNVDid:CNNVD-202207-470
db:NVDid:CVE-2022-21771

LAST UPDATE DATE

2024-08-14T13:02:05.446000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-88290date:2022-12-18T00:00:00
db:VULMONid:CVE-2022-21771date:2022-07-14T00:00:00
db:CNNVDid:CNNVD-202207-470date:2022-07-15T00:00:00
db:NVDid:CVE-2022-21771date:2022-07-14T09:56:21.783

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-88290date:2022-09-30T00:00:00
db:VULMONid:CVE-2022-21771date:2022-07-06T00:00:00
db:CNNVDid:CNNVD-202207-470date:2022-07-06T00:00:00
db:NVDid:CVE-2022-21771date:2022-07-06T14:15:17.487