CVE-2017-18360 Denial of service in n/a
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.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2017-18360, GHSA-7hhv-rch7-rfmj, UBUNTU-CVE-2017-18360.