CVE-2017-7346 Denial of service in n/a
Local attackers can cause a system hang via crafted ioctl calls to the vmwgfx driver due to missing validation of levels data.
- 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-2017-7346?
CVE-2017-7346 is a medium-severity denial of service vulnerability in Linux kernel, published on 30 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.10.7 does not validate certain levels data, which allows local users to cause a denial of service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device.
Weakness: CWE-20
Which versions are affected by CVE-2017-7346?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2017-7346?
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-2017-7346 being exploited?
There is no known exploitation of CVE-2017-7346 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-7346, GHSA-cc7g-pqc6-jjvh, UBUNTU-CVE-2017-7346.