CVE-2016-3136 Null dereference in n/a

Medium 4.6 Published Updated

A physically proximate attacker can crash the Linux kernel via a crafted USB device due to a NULL pointer dereference in the mct_u232 driver.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2016-3136?

CVE-2016-3136 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 2 May 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Which versions are affected by CVE-2016-3136?

It affects 9 products.

Products include Canonical Ubuntu Linux, Linux kernel, Novell Suse Linux Enterprise Desktop, Novell Suse Linux Enterprise Live Patching, Novell Suse Linux Enterprise Module for Public Cloud, Novell Suse Linux Enterprise Real Time Extension and 3 more.

How do I fix CVE-2016-3136?

Upgrade to a fixed version.

Is CVE-2016-3136 being exploited?

There is no known exploitation of CVE-2016-3136 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-3136, GHSA-8w82-whc6-r426, UBUNTU-CVE-2016-3136.

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