CVE-2017-18241

Name: CVE-2017-18241
Creator: NVD / NIST
Published: 2018-03-21T16:29:00.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.42%

Last modified Jun 17, 2026

CVE-2017-18241 is a vulnerability of currently unknown severity. fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

fs/f2fs/segment.c in the Linux kernel before 4.13 allows local users to cause a denial of service (NULL pointer dereference and panic) by using a noflush_merge option that triggers a NULL value for a flush_cmd_control data structure.

Metrics

EPSS Probability

0.42%

33.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 4.13
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Third Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Vendor Advisory
https://github.com/torvalds/linux/commit/d4fdf8ba0e5808ba9ad6b44337783bd9935e0982Patch, Third Party Advisory
https://usn.ubuntu.com/3910-1/Third Party Advisory
https://usn.ubuntu.com/3910-2/Third Party Advisory
https://www.debian.org/security/2018/dsa-4187Third Party Advisory
https://www.debian.org/security/2018/dsa-4188Third Party Advisory

Timeline

Published: Mar 21, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18241?

How severe is CVE-2017-18241?

Severity scoring for CVE-2017-18241 is pending analysis. The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18241?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-18241?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST