CVE-2017-18224

Name: CVE-2017-18224
Creator: NVD / NIST
Published: 2018-03-12T03:29:00.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.29%

Last modified Jun 17, 2026

CVE-2017-18224 is a vulnerability of currently unknown severity. In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.

Description

In the Linux kernel before 4.15, fs/ocfs2/aops.c omits use of a semaphore and consequently has a race condition for access to the extent tree during read operations in DIRECT mode, which allows local users to cause a denial of service (BUG) by modifying a certain e_cpos field.

Metrics

EPSS Probability

0.29%

20.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 4.15

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Vendor Advisory
http://www.securityfocus.com/bid/103353Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Third Party Advisory
https://www.debian.org/security/2018/dsa-4188
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Vendor Advisory
http://www.securityfocus.com/bid/103353Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/3e4c56d41eef5595035872a2ec5a483f42e8917fPatch, Third Party Advisory
https://www.debian.org/security/2018/dsa-4188

Timeline

Published: Mar 12, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18224?

How severe is CVE-2017-18224?

Severity scoring for CVE-2017-18224 is pending analysis. The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18224?

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-2017-18224?

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

Scan your code now

Source: NVD / NIST