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CVE-2017-7187

25
FAUCET Score

CVE-2017-7187 is a stack-based buffer overflow vulnerability in the Linux kernel's sg_ioctl function (drivers/scsi/sg.c), affecting versions up to 4.10.4. A local attacker can trigger this flaw by providing a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to an out-of-bounds write in sg_write. Rated 7.8 HIGH (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), this vulnerability allows a low-privileged local user to cause a denial of service and potentially achieve further impact, including confidentiality and integrity compromise. The attack complexity is low, requiring local access but no user interaction. There is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.18.50CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.19, < 4.1.40CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.2, < 4.4.60CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.9.21CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.10.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 74th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-693.rt56.617.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-693.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2017-7187Moderate

kernel: scsi: Stack-based buffer overflow in sg_ioctl function

Mar 16, 2017

References

access.redhat.com / errata/RHSA-2017:1842
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2077
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2669
Third Party Advisory
gist.github.com / dvyukov/48ad14e84de45b0be92b7f0eda20ff1b
Third Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/mkp/scsi.git/commit
Issue TrackingPatchVendor Advisory
source.android.com / security/bulletin/pixel/2017-10-01
Third Party Advisory
securityfocus.com / bid/96989
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038086
Third Party AdvisoryVDB Entry