CVE-2017-16914

The stub_send_ret_submit() function (drivers/usb/usbip/stub_tx.c) in the Linux Kernel before version 4.14.8, 4.9.71, 4.1.49, and 4.4.107 allows attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Potential Mitigations

References

• http://www.securityfocus.com/bid/102150
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.49
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.107
• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.71
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/drivers/usb/usbip?id=be6123df1ea8f01ee2f896a16c2b7be3e4557a5a
• https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
• https://secuniaresearch.flexerasoftware.com/advisories/80722/
• https://secuniaresearch.flexerasoftware.com/secunia_research/2017-21/
• https://usn.ubuntu.com/3619-1/
• https://usn.ubuntu.com/3619-2/
• https://usn.ubuntu.com/3754-1/
• https://www.debian.org/security/2018/dsa-4187
• https://www.spinics.net/lists/linux-usb/msg163480.html