CVE-2018-13100 Denial of service in n/a
A divide-by-zero error in the Linux kernel's f2fs filesystem allows attackers to cause a denial of service via a corrupted image.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-13100?
CVE-2018-13100 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 3 Jul 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3, which does not properly validate secs_per_zone in a corrupted f2fs image, as demonstrated by a divide-by-zero error.
Weakness: CWE-369
Which versions are affected by CVE-2018-13100?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2018-13100?
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-2018-13100 being exploited?
There is no known exploitation of CVE-2018-13100 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2018-13100, GHSA-p3q8-89q5-qcj2, UBUNTU-CVE-2018-13100.