CVE-2019-19068: Canonical Ubuntu Linux

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

A memory leak in the rtl8xxxu_submit_int_urb() function in drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering usb_submit_urb() failures, aka CID-a2cdd07488e6.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 19.10 only
• Debian Debian Linux: version 8.0 only
• Fedoraproject Fedora: version 30 only; version 31 only
• Linux Linux Kernel: up to and including 5.3.11
• Opensuse Leap: version 15.1 only
• Red Hat Enterprise Linux: version 7.0 only; version 8.0 only

Published 2019-11-18. Last modified 2026-06-17.