CVE-2017-18360 Denial of service in n/a

Medium 5.5 Published Updated

Local users can cause a denial of service in the Linux kernel via division-by-zero in the USB serial driver by setting high baud rates.

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

What is CVE-2017-18360?

CVE-2017-18360 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 31 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In change_port_settings in drivers/usb/serial/io_ti.c in the Linux kernel before 4.11.3, local users could cause a denial of service by division-by-zero in the serial device layer by trying to set very high baud rates.

Weakness: CWE-369

Which versions are affected by CVE-2017-18360?

It affects 2 products.

Products include Canonical Ubuntu Linux, Linux kernel.

How do I fix CVE-2017-18360?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-18360 being exploited?

There is no known exploitation of CVE-2017-18360 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-18360, GHSA-7hhv-rch7-rfmj, UBUNTU-CVE-2017-18360.

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