CVE-2021-33897

A buffer overflow in Synthesia before 10.7.5567, when a non-Latin locale is used, allows user-assisted attackers to cause a denial of service (application crash) via a crafted MIDI file with malformed bytes. This file is mishandled during a deletion attempt. In Synthesia before 10.9, an improper path handling allows local attackers to cause a denial of service (application crash) via a crafted MIDI file with malformed bytes.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

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

References

Link	Resource
https://isopach.dev/CVE-2021-33897	Third Party Advisory
https://synthesiagame.com/news	Release Notes Vendor Advisory
https://isopach.dev/CVE-2021-33897	Third Party Advisory
https://synthesiagame.com/news	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:synthesiagame:synthesia:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:09

Type	Values Removed	Values Added
References	~~() https://isopach.dev/CVE-2021-33897 - Third Party Advisory~~	() https://isopach.dev/CVE-2021-33897 - Third Party Advisory
References	~~() https://synthesiagame.com/news - Release Notes, Vendor Advisory~~	() https://synthesiagame.com/news - Release Notes, Vendor Advisory

21 Nov 2022, 20:01

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-11-17 21:15

Updated : 2025-04-29 21:15

NVD link : CVE-2021-33897

Mitre link : CVE-2021-33897

CVE.ORG link : CVE-2021-33897

JSON object : View

Products Affected

synthesiagame

synthesia

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2021-33897", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/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}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/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": "2022-11-17T21:15:12.350", "references": [{"url": "https://isopach.dev/CVE-2021-33897", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://synthesiagame.com/news", "tags": ["Release Notes", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://isopach.dev/CVE-2021-33897", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://synthesiagame.com/news", "tags": ["Release Notes", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "A buffer overflow in Synthesia before 10.7.5567, when a non-Latin locale is used, allows user-assisted attackers to cause a denial of service (application crash) via a crafted MIDI file with malformed bytes. This file is mishandled during a deletion attempt. In Synthesia before 10.9, an improper path handling allows local attackers to cause a denial of service (application crash) via a crafted MIDI file with malformed bytes."}, {"lang": "es", "value": "Un desbordamiento de b\u00fafer en Synthesia anterior a 10.7.5567, cuando se utiliza una configuraci\u00f3n regional no latina, permite a atacantes con la ayuda del usuario provocar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de un archivo MIDI manipulado con bytes con un formato incorrecto. Este archivo se maneja mal durante un intento de borrado. En Synthesia anterior a 10.9, un manejo inadecuado de la ruta permite a atacantes locales provocar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de un archivo MIDI manipulado con bytes con formato incorrecto."}], "lastModified": "2025-04-29T21:15:47.830", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:synthesiagame:synthesia:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4713B975-BD98-4198-8DAD-A550D3FFE420", "versionEndIncluding": "10.8"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}