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CVE-2018-10021

17
FAUCET Score

CVE-2018-10021 is a denial-of-service vulnerability in the Linux kernel (versions prior to 4.16), specifically within the drivers/scsi/libsas/sas_scsi_host.c component. This flaw allows local users to trigger an ATA queue command leak under specific failure conditions. Rated Medium (CVSS 5.5), exploitation requires local access and can lead to system unavailability. Despite its potential impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
37.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 91st percentile among its peer group of 15,940 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Vendor Patches (5)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2018-10021

kernel: ata qc leak in drivers/scsi/libsas/sas_scsi_host.c allows local users to cause denial-of-service

Mar 8, 2018

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Vendor Advisory
bugzilla.suse.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/318aaf34f1179b39fa9c30fa0f3288b645beee39
Third Party Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00020.html
usn.ubuntu.com / 3678-1
usn.ubuntu.com / 3678-2
usn.ubuntu.com / 3678-3
usn.ubuntu.com / 3678-4
usn.ubuntu.com / 3696-1
usn.ubuntu.com / 3696-2
usn.ubuntu.com / 3754-1