CVE-2019-19529: Canonical Ubuntu Linux

Medium severity, CVSS 6.3. EPSS: 0.4% chance of exploitation in the next 30 days.

In the Linux kernel before 5.3.11, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcba_usb.c driver, aka CID-4d6636498c41.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 19.04 only; version 19.10 only
• Linux Linux Kernel: before 5.3.11 (fixed in 5.3.11)

Published 2019-12-03. Last modified 2026-06-17.