CVE-2017-16525 Use after free in n/a
A local attacker with a crafted USB device can trigger a use-after-free in the Linux kernel, causing a system crash.
- 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-2017-16525?
CVE-2017-16525 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 4 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The usb_serial_console_disconnect function in drivers/usb/serial/console.c in the Linux kernel before 4.13.8 allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via a crafted USB device, related to disconnection and failed setup.
Weakness: CWE-416
Which versions are affected by CVE-2017-16525?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel.
How do I fix CVE-2017-16525?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-16525 being exploited?
There is no known exploitation of CVE-2017-16525 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2017-16525, GHSA-5cfc-cp57-xp2m, UBUNTU-CVE-2017-16525.