CVE Database›Document archive›CVE-2016-3136

CVE-2016-3136

kernel: Crash on invalid USB device descriptors (mct_u232 driver)

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Severity

Low

Red Hat Product Security

4.9

CVSS 2.0

Review impact separately from score.

Published · March 9, 2016

Updated · November 21, 2025

Description

The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service (NULL pointer dereference and system crash) via a crafted USB device without two interrupt-in endpoint descriptors.

Statement

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code with the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

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 2.0 · 4.9
AV:L/AC:L/Au:N/C:N/I:N/A:C

CWE-476 · NULL Pointer Dereference