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CVE-2017-18202

22
FAUCET Score

CVE-2017-18202 is a denial-of-service vulnerability affecting the Linux kernel before version 4.14.4, specifically within the __oom_reap_task_mm function. An attacker can trigger a copy_to_user call at a precise moment, leading to a TLB entry leak, use-after-free, or other unspecified impacts. With a CVSS score of 7.0 (High), this vulnerability requires local access and high attack complexity, but can result in high confidentiality, integrity, and availability impacts. There is no public exploit code available, nor is there evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.6, < 4.9.68CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 70th percentile among its peer group of 1,523 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-49.13.1.el7a
View patch

Vendor Advisories (1)

redhatCVE-2017-18202Important

kernel: Infoleak/use-after-free in __oom_reap_task_mm function in mm/oom_kill.c

Feb 27, 2018

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
access.redhat.com / errata/RHSA-2018:2772
Third Party Advisory
github.com / torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146
PatchThird Party Advisory
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.14.4
Vendor Advisory
securityfocus.com / bid/103161
Third Party AdvisoryVDB Entry