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ID

VAR-202207-0344


CVE

CVE-2022-21787


TITLE

Multiple MediaTek chips audio DSP input validation error vulnerability

Trust: 0.6

sources: CNVD: CNVD-2022-66254

DESCRIPTION

In audio DSP, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06558844; Issue ID: ALPS06558844. 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 chip audio DSPs have an input validation error vulnerability that stems from a lack of bounds checking. An attacker could exploit the vulnerability to escalate local privileges without requiring user interaction

Trust: 1.53

sources: NVD: CVE-2022-21787 // CNVD: CNVD-2022-66254 // VULMON: CVE-2022-21787

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2022-66254

AFFECTED PRODUCTS

vendor:googlemodel:androidscope:eqversion:12.0

Trust: 1.0

vendor:googlemodel:androidscope:eqversion:11.0

Trust: 1.0

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:mt6885 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt6885 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:mt8797 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8797 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:mt8791 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8791 android12.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8798 android11.0scope: - version: -

Trust: 0.6

vendor:mediatekmodel:mt8798 android12.0scope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2022-66254 // NVD: CVE-2022-21787

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2022-21787
value: MEDIUM

Trust: 1.0

CNVD: CNVD-2022-66254
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-202207-452
value: MEDIUM

Trust: 0.6

VULMON: CVE-2022-21787
value: MEDIUM

Trust: 0.1

nvd@nist.gov: CVE-2022-21787
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-2022-66254
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-2022-21787
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-2022-66254 // VULMON: CVE-2022-21787 // CNNVD: CNNVD-202207-452 // NVD: CVE-2022-21787

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

sources: NVD: CVE-2022-21787

THREAT TYPE

local

Trust: 0.6

sources: CNNVD: CNNVD-202207-452

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202207-452

PATCH

title:Patch for Multiple MediaTek chips audio DSP input validation error vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/353666

Trust: 0.6

title:MediaTek Repair measures for chip buffer error vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=199229

Trust: 0.6

sources: CNVD: CNVD-2022-66254 // CNNVD: CNNVD-202207-452

EXTERNAL IDS

db:NVDid:CVE-2022-21787

Trust: 2.3

db:CNVDid:CNVD-2022-66254

Trust: 0.6

db:CS-HELPid:SB2022070819

Trust: 0.6

db:CNNVDid:CNNVD-202207-452

Trust: 0.6

db:VULMONid:CVE-2022-21787

Trust: 0.1

sources: CNVD: CNVD-2022-66254 // VULMON: CVE-2022-21787 // CNNVD: CNNVD-202207-452 // NVD: CVE-2022-21787

REFERENCES

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

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2022-21787

Trust: 0.6

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

Trust: 0.6

url:https://cxsecurity.com/cveshow/cve-2022-21787/

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-2022-66254 // VULMON: CVE-2022-21787 // CNNVD: CNNVD-202207-452 // NVD: CVE-2022-21787

SOURCES

db:CNVDid:CNVD-2022-66254
db:VULMONid:CVE-2022-21787
db:CNNVDid:CNNVD-202207-452
db:NVDid:CVE-2022-21787

LAST UPDATE DATE

2024-08-14T12:24:38.568000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2022-66254date:2022-09-28T00:00:00
db:VULMONid:CVE-2022-21787date:2022-07-14T00:00:00
db:CNNVDid:CNNVD-202207-452date:2022-07-15T00:00:00
db:NVDid:CVE-2022-21787date:2022-07-14T17:25:43.740

SOURCES RELEASE DATE

db:CNVDid:CNVD-2022-66254date:2022-09-29T00:00:00
db:VULMONid:CVE-2022-21787date:2022-07-06T00:00:00
db:CNNVDid:CNNVD-202207-452date:2022-07-06T00:00:00
db:NVDid:CVE-2022-21787date:2022-07-06T14:15:18.223