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CVE-2017-14340

Published: 15 September 2017

The XFS_IS_REALTIME_INODE macro in fs/xfs/xfs_linux.h in the Linux kernel before 4.13.2 does not verify that a filesystem has a realtime device, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via vectors related to setting an RHINHERIT flag on a directory.

From the Ubuntu Security Team

Dave Chinner discovered that the XFS filesystem did not enforce that the realtime inode flag was settable only on filesystems on a realtime device. A local attacker could use this to cause a denial of service (system crash).

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
linux-armadaxp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
xenial
Released (4.4.0-1039.48)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.14~rc1)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial
Released (4.13.0-1005.7)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.14~rc1)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Ignored
(was needed ESM criteria)
zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-flo
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.10.0-1008.8)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.14~rc1)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1033.33)
zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-goldfish
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(end of life, was needed)
zesty Ignored
(end of life)
bionic Does not exist

upstream
Released (4.14~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.10.0-38.42~16.04.1)
zesty Does not exist

bionic Not vulnerable

upstream
Released (4.14~rc1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.10.0-38.42~16.04.1)
zesty Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
upstream
Released (4.14~rc1)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1009.14)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.14~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
trusty Does not exist

xenial Does not exist

zesty Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc1)
bionic Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc1)
bionic Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-lts-utopic
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Ignored
(end of life, was needs-triage)
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-lts-wily
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc1)
bionic Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
artful Does not exist

trusty
Released (4.4.0-98.121~14.04.1)
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-mako
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Not vulnerable
(4.13.0-1008.9)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.3)
upstream
Released (4.14~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc1)
linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.13.0-1004.4)
trusty Does not exist

xenial
Released (4.4.0-1076.84)
zesty
Released (4.10.0-1020.23)
bionic Not vulnerable
(4.13.0-1005.5)
upstream
Released (4.14~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1078.83)
trusty Does not exist

xenial
Released (4.4.0-1078.83)
zesty
Released (4.4.0-1078.83)
bionic Not vulnerable

upstream
Released (4.14~rc1)
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
upstream
Released (4.14~rc1)
artful Not vulnerable
(4.13.0-12.13)
trusty
Released (3.13.0-135.184)
xenial
Released (4.4.0-98.121)
zesty
Released (4.10.0-38.42)
Patches:
Introduced by

f538d4da8d521746ca5ebf8c1a8105eb49bfb45e

Fixed by b31ff3cdf540110da4572e3e29bd172087af65cc
linux-ti-omap4
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.14~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H