CVE-2017-18202

Name: CVE-2017-18202
Creator: NVD / NIST
Published: 2018-02-27T06:29:00.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2017-18202 is a high-severity vulnerability rated 7/10 on the CVSS scale. The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

Metrics

CVSS 3.1

7/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.39%

31.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 4.6, < 4.9.68
Linux	Linux Kernel	>= 4.10, < 4.14.4

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146Patch, Vendor Advisory
http://www.securityfocus.com/bid/103161Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2772Third Party Advisory
https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146Patch, Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146Patch, Vendor Advisory
http://www.securityfocus.com/bid/103161Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2772Third Party Advisory
https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146Patch, Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4Vendor Advisory

Timeline

Published: Feb 27, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18202?

How severe is CVE-2017-18202?

CVE-2017-18202 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18202?

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-2017-18202?

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

Scan your code now

Source: NVD / NIST