Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2017-12190 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058	CVE	Issue TrackingPatchVendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467	CVE	Issue TrackingPatchVendor Advisory
https://access.redhat.com/errata/RHSA-2018:0654	CVE
https://access.redhat.com/errata/RHSA-2018:0676	CVE
https://access.redhat.com/errata/RHSA-2018:1062	CVE
https://access.redhat.com/errata/RHSA-2018:1854	CVE
https://access.redhat.com/errata/RHSA-2019:1170	CVE
https://access.redhat.com/errata/RHSA-2019:1190	CVE
https://bugzilla.redhat.com/show_bug.cgi?id=1495089	CVE	Issue TrackingPatchThird Party Advisory
http://seclists.org/oss-sec/2017/q4/52	CVE	Issue TrackingMailing ListThird Party Advisory
https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058	CVE	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467	CVE	Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html	CVE
https://support.f5.com/csp/article/K93472064?utm_source=f5support&amp%3Butm_medium=RSS	CVE
https://usn.ubuntu.com/3582-1/	CVE
https://usn.ubuntu.com/3582-2/	CVE
https://usn.ubuntu.com/3583-1/	CVE
https://usn.ubuntu.com/3583-2/	CVE
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8	CVE	Issue TrackingThird Party Advisory
http://www.securityfocus.com/bid/101911	CVE	Issue TrackingThird Party AdvisoryVDB Entry
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058	[email protected]	Issue TrackingPatchVendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467	[email protected]	Issue TrackingPatchVendor Advisory
https://access.redhat.com/errata/RHSA-2018:0654	[email protected]
https://access.redhat.com/errata/RHSA-2018:0676	[email protected]
https://access.redhat.com/errata/RHSA-2018:1062	[email protected]
https://access.redhat.com/errata/RHSA-2018:1854	[email protected]
https://access.redhat.com/errata/RHSA-2019:1170	[email protected]
https://access.redhat.com/errata/RHSA-2019:1190	[email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1495089	[email protected]	Issue TrackingPatchThird Party Advisory
http://seclists.org/oss-sec/2017/q4/52	[email protected]	Issue TrackingMailing ListThird Party Advisory
https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058	[email protected]	Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467	[email protected]	Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html	[email protected]
https://support.f5.com/csp/article/K93472064?utm_source=f5support&amp%3Butm_medium=RSS	[email protected]
https://usn.ubuntu.com/3582-1/	[email protected]
https://usn.ubuntu.com/3582-2/	[email protected]
https://usn.ubuntu.com/3583-1/	[email protected]
https://usn.ubuntu.com/3583-2/	[email protected]
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8	[email protected]	Issue TrackingThird Party Advisory
http://www.securityfocus.com/bid/101911	[email protected]	Issue TrackingThird Party AdvisoryVDB Entry

see all 40 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	[email protected]
CWE-772	Missing Release of Resource after Effective Lifetime	[email protected]

Affected Products

Product	Versions
linux linux kernel	<= 4.13.7
CPE cpe:2.3:o:linux:linux_kernel:::::::: Remediation No remediation found in references.

Change History

18 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 12, 2023	CVE Modified	[email protected]
Feb 2, 2023	CVE Modified	[email protected]
Nov 13, 2019	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Oct 3, 2019	CWE Remap	[email protected]
May 14, 2019	CVE Modified	[email protected]
May 14, 2019	CVE Modified	[email protected]
Jun 20, 2018	CVE Modified	[email protected]
Apr 12, 2018	CVE Modified	[email protected]
Apr 11, 2018	CVE Modified	[email protected]
Mar 16, 2018	CVE Modified	[email protected]
Feb 4, 2018	CVE Modified	[email protected]
Dec 11, 2017	Initial Analysis	[email protected]
Nov 24, 2017	CVE Modified	[email protected]