CVE-2024-50268
Published: November 21, 2024Last modified: November 21, 2024
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()
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.119-r0) |
| Stream | linux-lts | Fixed (6.6.62-r0) |
References
- https://git.kernel.org/stable/c/3a2ba841659a0f15102585120dea75d8d5209616
- https://git.kernel.org/stable/c/604314ecd682913925980dc955caea2d036eab5f
- https://git.kernel.org/stable/c/69e19774f15e12dda6c6c58001d059e30895009b
- https://git.kernel.org/stable/c/7dd08a0b4193087976db6b3ee7807de7e8316f96
- https://git.kernel.org/stable/c/8f47984b35f3be0cfc652c2ca358d5768ea3456b
- https://git.kernel.org/stable/c/d76923164705821aa1b01b8d9d1741f20c654ab4