Description
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()
The "*cmd" variable can be controlled by the user via debugfs. That means "new_cam" can be as high as 255 while the size of the uc->updated[] array is UCSI_MAX_ALTMODES (30).
The call tree is: ucsi_cmd() // val comes from simple_attr_write_xsigned() -> ucsi_send_command() -> ucsi_send_command_common() -> ucsi_run_command() // calls ucsi->ops->sync_control() -> ucsi_ccg_sync_control()
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 170a6726d0e266f2c8f306e3d61715c32f4ee41e, < d76923164705821aa1b01b8d9d1741f20c654ab4; >= 170a6726d0e266f2c8f306e3d61715c32f4ee41e, < 8f47984b35f3be0cfc652c2ca358d5768ea3456b; >= 170a6726d0e266f2c8f306e3d61715c32f4ee41e, < 604314ecd682913925980dc955caea2d036eab5f; >= 170a6726d0e266f2c8f306e3d61715c32f4ee41e, < 69e19774f15e12dda6c6c58001d059e30895009b; >= 170a6726d0e266f2c8f306e3d61715c32f4ee41e, < 3a2ba841659a0f15102585120dea75d8d5209616; >= 170a6726d0e266f2c8f306e3d61715c32f4ee41e, < 7dd08a0b4193087976db6b3ee7807de7e8316f96 |
| Linux | Linux | 5.6 |
References
- https://git.kernel.org/stable/c/3a2ba841659a0f15102585120dea75d8d5209616Patch
- https://git.kernel.org/stable/c/604314ecd682913925980dc955caea2d036eab5fPatch
- https://git.kernel.org/stable/c/69e19774f15e12dda6c6c58001d059e30895009bPatch
- https://git.kernel.org/stable/c/7dd08a0b4193087976db6b3ee7807de7e8316f96Patch
- https://git.kernel.org/stable/c/8f47984b35f3be0cfc652c2ca358d5768ea3456bPatch
- https://git.kernel.org/stable/c/d76923164705821aa1b01b8d9d1741f20c654ab4Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Timeline
- Published
- Nov 19, 2024
- Last modified
- Aug 4, 2026
- NVD status
- Modified