CVE-2016-3955: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 25.3% chance of exploitation in the next 30 days.

The usbip_recv_xbuff function in drivers/usb/usbip/usbip_common.c in the Linux kernel before 4.5.3 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact via a crafted length value in a USB/IP packet.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only
• Debian Debian Linux: version 8.0 only
• Linux Linux Kernel: before 3.2.80 (fixed in 3.2.80); from 3.3, before 3.10.102 (fixed in 3.10.102); from 3.11, before 3.12.59 (fixed in 3.12.59); from 3.13, before 3.14.68 (fixed in 3.14.68); from 3.17, before 3.18.37 (fixed in 3.18.37); from 3.19, before 4.1.28 (fixed in 4.1.28); …

Published 2016-07-03. Last modified 2026-06-17.