CVE-2018-20787

The ft5x46 touchscreen driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26 has an integer overflow and OOPS because of missing checks of the size argument in tpdbg_write in drivers/input/touchscreen/ft5x46/ft5x46_ts.c. This is exploitable for a device crash via a syscall by a crafted application on a rooted device.

CVSS v3 5.5 MEDIUM
CVSS v2.0 7.1 HIGH

5.5^/10

CVSS v3 : MEDIUM

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/991	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:micode:xiaomi_perseus-p-oss:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-02-25 04:29

Updated : 2019-02-26 16:58

NVD link : CVE-2018-20787

Mitre link : CVE-2018-20787

CVE.ORG link : CVE-2018-20787

JSON object : View

Products Affected

micode

xiaomi_perseus-p-oss

CWE

CWE-190

Integer Overflow or Wraparound

{"id": "CVE-2018-20787", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.1, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2019-02-25T04:29:00.230", "references": [{"url": "https://github.com/MiCode/Xiaomi_Kernel_OpenSource/issues/991", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "The ft5x46 touchscreen driver for custom Linux kernels on the Xiaomi perseus-p-oss MIX 3 device through 2018-11-26 has an integer overflow and OOPS because of missing checks of the size argument in tpdbg_write in drivers/input/touchscreen/ft5x46/ft5x46_ts.c. This is exploitable for a device crash via a syscall by a crafted application on a rooted device."}, {"lang": "es", "value": "El controlador de la pantalla t\u00e1ctil ft5x46 para los kernels de Linux personalizados en el dispositivo Xiaomi perseus-p-oss MIX 3 hasta el 26/11/2018 tiene un desbordamiento de enteros y un \"OOPS\" debido a la falta de comprobaciones del argumento de tama\u00f1o en tpdbg_write en drivers/input/touchscreen/ft5x46/ft5x46_ts.c. Esto puede ser explotado para un cierre inesperado del dispositivo mediante una llamada del sistema de una aplicaci\u00f3n manipulada en un dispositivo rooteado."}], "lastModified": "2019-02-26T16:58:11.550", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:micode:xiaomi_perseus-p-oss:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "43BA76AB-19EA-497A-BE29-2B48048DB807", "versionEndIncluding": "2018-11-26"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}