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The add_probe function in modutils/modprobe.c in BusyBox before 1.23.0 allows local users to bypass intended restrictions on loading kernel modules via a / (slash) character in a module name, as demonstrated by an "ifconfig /usbserial up" command or a "mount -t /snd_pcm none /" command.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade busybox | Feb 20, 2019 | Mar 12, 2017 |
| Gentoo Linux | — | Upgrade sys-apps/busybox. | Oct 30, 2017 | Mar 12, 2017 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 12, 2017 |
| Suse | — | Upgrade busybox | Dec 18, 2015 | Aug 28, 2015 |
| Ubuntu | — | Upgrade busybox-staticUpgrade busyboxUpgrade busybox-initramfsUpgrade udhcpdUpgrade udhcpc | Apr 10, 2019 | Aug 28, 2015 |
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