PT-2018-6732 · Linux+5 · Linux Kernel+5

Published 2017-12-08 · Updated 2018-07-09 · CVE-2017-18203

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.14.3

Description: The issue allows local users to cause a denial of service by leveraging a race condition with dm destroy during creation and removal of DM devices. This is due to a problem in the dm get from kobject function in drivers/md/dm.c.

Recommendations: For versions prior to 4.14.3, update to version 4.14.3 or later to resolve the issue.

Fix

DoS

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

ALT-PU-2017-2771

ALT-PU-2018-1991

CESA-2018_1062

CESA-2018_1854

CVE-2017-18203

DLA-1369-1

DSA-4187-1

RHSA-2018:0676

RHSA-2018:1062

RHSA-2018:1854

RHSA-2018_0676

RHSA-2018_1062

RHSA-2018_1854

RHSA-2019:4154

SUSE-SU-2018:1080-1

SUSE-SU-2018:1172-1

SUSE-SU-2018:1220-1

SUSE-SU-2018:1221-1

SUSE-SU-2018:1309-1

USN-3619-1

USN-3619-2

USN-3653-1

USN-3653-2

USN-3655-1

USN-3655-2

USN-3657-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 182

• https://github.com/torvalds/linux/commit/b9a41d21dceadf8104812626ef85dc56ee8a60ed · Patch
• https://ubuntu.com/security/CVE-2017-15129 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16536 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.3 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-18203 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-18079 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-0861 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16537 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-3639 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3653-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3653-2 · Vendor Advisory
• https://usn.ubuntu.com/3619-2 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2018:0676 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9a41d21dceadf8104812626ef85dc56ee8a60ed · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-16912 · Vendor Advisory