CVE-2019-19527
kernel: use-after-free caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 6, 2019
Updated · June 28, 2026
Description
A vulnerability was found in hiddev_open in drivers/hid/usbhid/hiddev.c in the USB Human Interface Device class subsystem, where an existing device must be validated prior to its access. The device should also ensure the hiddev_list cleanup occurs at failure, as this may lead to a use-after-free problem, or possibly escalate privileges to an unauthorized user.
Statement
This issue is rated as Moderate because of the need of physical access to the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 6.8CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free