CVE-2025-55095— Eclipse ThreadX USBX 安全漏洞

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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.

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

栈缓冲区溢出

Eclipse ThreadX USBX 安全漏洞

Eclipse ThreadX USBX是Eclipse ThreadX开源的一个USB主机、设备和移动嵌入式堆栈。 Eclipse ThreadX USBX存在安全漏洞，该漏洞源于_ux_host_class_storage_media_mount函数递归深度无限制，可能导致栈溢出。

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