Improper input validation in drivers/usb/usbip/stub_rx.c:stub_recv_cmd_submit() in the Linux Kernel when handling CMD_SUBMIT packets allows attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet. References: https://secuniaresearch.flexerasoftware.com/secunia_research/2017-21/ https://www.spinics.net/lists/linux-usb/msg163479.html An upstream fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c6688ef9f29762e65bce325ef4acd6c675806366
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1545617]
This was fixed for fedora with the 4.14.14 stable updates.
Statement: This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, and 7, its real-time kernel, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7 for ARM 64, and Red Hat Enterprise Linux 7 for Power 9 LE, as the code with the flaw is not enabled and is not built in the products listed.