CVE-2018-13097 Denial of service in n/a
A corrupted f2fs image triggers an out-of-bounds read or divide-by-zero error in the Linux kernel, causing a system crash.
- 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-2018-13097?
CVE-2018-13097 is a medium-severity denial of service vulnerability in Linux kernel, 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. There is an out-of-bounds read or a divide-by-zero error for an incorrect user_block_count in a corrupted f2fs image, leading to a denial of service (BUG).
Which versions are affected by CVE-2018-13097?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2018-13097?
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-2018-13097 being exploited?
There is no known exploitation of CVE-2018-13097 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2018-13097, GHSA-4rpw-vhwc-m57p, UBUNTU-CVE-2018-13097.