CVE-2017-18249

Name: CVE-2017-18249
Creator: NVD / NIST
Published: 2018-03-26T20:29:00.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.32%

Last modified Jun 17, 2026

CVE-2017-18249 is a vulnerability of currently unknown severity. The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.

Metrics

EPSS Probability

0.32%

24.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 4.12
Debian	Debian Linux	8.0

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
http://www.securitytracker.com/id/1041432Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/3932-2/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
http://www.securitytracker.com/id/1041432Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/3932-2/

Timeline

Published: Mar 26, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18249?

How severe is CVE-2017-18249?

Severity scoring for CVE-2017-18249 is pending analysis. The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18249?

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-2017-18249?

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

Scan your code now

Source: NVD / NIST