CVE-2025-55095

{"id": "CVE-2025-55095", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "emo@eclipse.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 3.4, "exploitabilityScore": 0.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.0, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.0}]}, "published": "2026-01-27T16:16:14.930", "references": [{"url": "https://github.com/eclipse-threadx/usbx/security/advisories/GHSA-qfmp-wch9-rpv2", "tags": ["Exploit", "Vendor Advisory"], "source": "emo@eclipse.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "emo@eclipse.org", "description": [{"lang": "en", "value": "CWE-121"}, {"lang": "en", "value": "CWE-674"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "The function _ux_host_class_storage_media_mount()\u00a0is responsible for mounting partitions on a USB mass storage device. When it encounters an extended partition entry in the partition table, it recursively calls itself to mount the next logical partition.\n\nThis recursion occurs in _ux_host_class_storage_partition_read(), which parses up to four partition entries. If an extended partition is found (with type UX_HOST_CLASS_STORAGE_PARTITION_EXTENDED\u00a0or EXTENDED_LBA_MAPPED), the code invokes:\n _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));\n\n\nThere is no limit on the recursion depth or tracking of visited sectors. As a result, a malicious or malformed disk image can include cyclic or excessively deep chains of extended partitions, causing the function to recurse until stack overflow occurs."}, {"lang": "es", "value": "La funci\u00f3n _ux_host_class_storage_media_mount() es responsable de montar particiones en un dispositivo de almacenamiento masivo USB. Cuando encuentra una entrada de partici\u00f3n extendida en la tabla de particiones, se llama a s\u00ed misma recursivamente para montar la siguiente partici\u00f3n l\u00f3gica.\n\nEsta recursi\u00f3n ocurre en _ux_host_class_storage_partition_read(), que analiza hasta cuatro entradas de partici\u00f3n. Si se encuentra una partici\u00f3n extendida (con el tipo UX_HOST_CLASS_STORAGE_PARTITION_EXTENDED o EXTENDED_LBA_MAPPED), el c\u00f3digo invoca:\n _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));\n\nNo hay l\u00edmite en la profundidad de recursi\u00f3n ni seguimiento de los sectores visitados. Como resultado, una imagen de disco maliciosa o malformada puede incluir cadenas c\u00edclicas o excesivamente profundas de particiones extendidas, lo que hace que la funci\u00f3n recurra hasta que ocurra un desbordamiento de pila."}], "lastModified": "2026-04-02T20:28:48.727", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:eclipse:threadx_usbx:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF35E739-A6C8-4A49-B499-ED473CE276CF", "versionEndIncluding": "6.4.2"}], "operator": "OR"}]}], "sourceIdentifier": "emo@eclipse.org"}