CVE-2017-16649 Denial of service in n/a
A local attacker can cause a system crash via a divide-by-zero error in the Linux kernel's USB network driver by using a crafted USB device.
- 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-2017-16649?
CVE-2017-16649 is a medium-severity denial of service vulnerability in Linux kernel, published on 7 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The usbnet_generic_cdc_bind function in drivers/net/usb/cdc_ether.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (divide-by-zero error and system crash) or possibly have unspecified other impact via a crafted USB device.
Weakness: CWE-369
Which versions are affected by CVE-2017-16649?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2017-16649?
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-2017-16649 being exploited?
There is no known exploitation of CVE-2017-16649 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-16649, GHSA-3ggx-f2mm-cg59, UBUNTU-CVE-2017-16649.