CVE-2024-50268: usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()
First published: Tue Nov 19 2024(Updated: )
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()
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.6<5.10.230 | |
| Linux Kernel | >=5.11<5.15.172 | |
| Linux Kernel | >=5.16<6.1.117 | |
| Linux Kernel | >=6.2<6.6.61 | |
| Linux Kernel | >=6.7<6.11.8 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/d76923164705821aa1b01b8d9d1741f20c654ab4
- https://git.kernel.org/stable/c/8f47984b35f3be0cfc652c2ca358d5768ea3456b
- https://git.kernel.org/stable/c/604314ecd682913925980dc955caea2d036eab5f
- https://git.kernel.org/stable/c/69e19774f15e12dda6c6c58001d059e30895009b
- https://git.kernel.org/stable/c/3a2ba841659a0f15102585120dea75d8d5209616
- https://git.kernel.org/stable/c/7dd08a0b4193087976db6b3ee7807de7e8316f96
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50268
- https://nvd.nist.gov/vuln/detail/CVE-2024-50268
- https://launchpad.net/bugs/cve/CVE-2024-50268
- https://security-tracker.debian.org/tracker/CVE-2024-50268
- https://ubuntu.com/security/CVE-2024-50268
- https://git.kernel.org/linus/7dd08a0b4193087976db6b3ee7807de7e8316f96
Frequently Asked Questions
What is the severity of CVE-2024-50268?
CVE-2024-50268 has a severity rating that reflects its potential impact on affected systems.
How do I fix CVE-2024-50268?
To fix CVE-2024-50268, users should upgrade to a patched version of the Linux kernel that addresses this vulnerability.
What versions of the Linux kernel are affected by CVE-2024-50268?
CVE-2024-50268 affects Linux kernel versions from 5.6 up to 6.12-rc6, excluding patched versions.
Can CVE-2024-50268 be exploited remotely?
CVE-2024-50268 may potentially be exploited locally due to user-controlled variables via debugfs.
What components are primarily involved in CVE-2024-50268?
CVE-2024-50268 primarily affects the USB Type-C component within the Linux kernel.
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