CVE Database›Document archive›CVE-2019-15218

CVE-2019-15218

kernel: null pointer dereference in the drivers/media/usb/siano/smsusb.c driver

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Severity

Low

Red Hat Product Security

4.6

CVSS 3.1

Review impact separately from score.

Published · August 19, 2019

Updated · October 9, 2026

Description

A flaw was found in the Linux kernel's Siano Mobile Silicon MDTV receiver driver. An attacker, with physical access and a specially crafted USB device, can exploit this vulnerability, creating a NULL pointer dereference and causing the system to crash. The highest threat from this vulnerability is system availability.

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

As the smsusb module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions:

echo "install smsusb /bin/true" >> /etc/modprobe.d/disable-smsusb.conf

The system will need to be restarted if the module are already loaded. In most circumstances, the smsusb kernel modules will be unable to be unloaded while the adapter is in use. If the system requires this module to work correctly, this mitigation may not be suitable.

If you need further assistance, see KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services."

CVSS / CWE

CVSS 3.1 · 4.6
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference