CVE-2020-15393: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In the Linux kernel 4.4 through 5.7.6, usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 20.04 only
• Debian Debian Linux: version 9.0 only
• Linux Linux Kernel: from 4.4, up to and including 5.7.6
• Opensuse Leap: version 15.1 only; version 15.2 only

Published 2020-06-29. Last modified 2026-06-17.