CVE Database›Document archive›CVE-2023-28328

CVE-2023-28328

kernel: Denial of service issue in az6027 driver in drivers/media/usb/dev-usb/az6027.c

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · November 18, 2022

Updated · June 28, 2026

Description

A NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in the Linux Kernel. The message from user space is not checked properly before transferring into the device. This flaw allows a local user to crash the system or potentially cause a denial of service.

Statement

This flaw can be mitigated by preventing the affected dvb_usb_az6027 kernel module from loading during the boot time. Ensure the module is added into the blacklist file.

Refer:  
How do I blacklist a kernel module to prevent it from loading automatically? 
https://access.redhat.com/solutions/41278

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

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference