| ID |
CVE-2025-55095
|
| Sažetak |
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.
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:
_ux_host_class_storage_media_mount(storage, sector + _ux_utility_long_get(...));
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. |
| Reference |
|
| CVSS |
| Base: | 4.2 |
| Impact: | 3.4 |
| Exploitability: | 0.8 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
HIGH |
LOW |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| LOW |
LOW |
LOW |
|
| CVSS vektor |
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L |
| Zadnje važnije ažuriranje |
02-04-2026 - 20:28 |
| Objavljeno |
27-01-2026 - 16:16 |
