Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2025-55095

Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-121 Desbordamiendo de búfer basado en pila (Stack)
Fecha de publicación:
27/01/2026
Última modificación:
27/01/2026

Descripción

*** Pendiente de traducción *** The function _ux_host_class_storage_media_mount() is 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.<br /> <br /> This 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 or EXTENDED_LBA_MAPPED), the code invokes:<br /> _ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));<br /> <br /> <br /> There 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.

Referencias a soluciones, herramientas e información