What is CVE-2017-12190?

CVE-2017-12190 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10, classified as a Uncontrolled Resource Consumption flaw (CWE-400). CVE-2017-12190 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-12190?

CVE-2017-12190 has a CVSS score of 6.5 out of 10, rated Medium severity. The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

Is there a patch available for CVE-2017-12190?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-12190 patch availability.

Is CVE-2017-12190 actively exploited?

CVE-2017-12190 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/400.html

CVE-2017-12190

Medium

The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition.

Package Linux Kernel

Published 2017-11-22

Last modified 2026-05-13

CVSS version 3.0

Patch available

Awaiting data

CVSS 3.0 score

6.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-400

CVE-2017-12190 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

References

20 total

Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058

Issue Tracking Patch Vendor Advisory
Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467

Issue Tracking Patch Vendor Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=1495089

Issue Tracking Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058

Issue Tracking Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467

Issue Tracking Patch Third Party Advisory

Showing 5 of 20 references View all on NVD

Details

CVE ID CVE-2017-12190

Severity Medium

CVSS score 6.5 / 10

CVSS version 3.0

Published 2017-11-22

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-12190?

CVE-2017-12190 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . CVE-2017-12190 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-12190?

CVE-2017-12190 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Is there a patch available for CVE-2017-12190?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-12190 patch availability.
Is CVE-2017-12190 actively exploited?

No. CVE-2017-12190 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.