CVE-2017-18204 Denial of service in n/a
Local users can cause a system deadlock and denial of service via Direct I/O requests in the OCFS2 filesystem.
- 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-2017-18204?
CVE-2017-18204 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The ocfs2_setattr function in fs/ocfs2/file.c in the Linux kernel before 4.14.2 allows local users to cause a denial of service (deadlock) via DIO requests.
Which versions are affected by CVE-2017-18204?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2017-18204?
Upgrade to a fixed version.
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-2017-18204 being exploited?
There is no known exploitation of CVE-2017-18204 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-18204, GHSA-hw47-c9m9-r69f, UBUNTU-CVE-2017-18204.