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CVE-2018-7480

Published: 25 February 2018

The blkcg_init_queue function in block/blk-cgroup.c in the Linux kernel before 4.11 allows local users to cause a denial of service (double free) or possibly have unspecified other impact by triggering a creation failure.

From the Ubuntu Security Team

It was discovered that a double free error existed in the block layer subsystem of the Linux kernel when setting up a request queue. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
upstream
Released (4.11~rc1)
artful Not vulnerable
(4.11.0-10.15)
trusty Not vulnerable

xenial
Released (4.4.0-127.153)
Patches:
Introduced by

994b78327458ea14a1743196ee0560c73ace37f3

Fixed by 9b54d816e00425c3a517514e0d677bb3cec49258
linux-armadaxp
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-goldfish
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(end of life, was needed)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

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

linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

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

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

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

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

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

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

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

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

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

linux-mako
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
upstream
Released (4.11~rc1)
artful Does not exist

bionic Does not exist

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

linux-qcm-msm
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.11~rc1)
artful Does not exist

trusty Does not exist

xenial Does not exist

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

artful Does not exist

trusty Does not exist

xenial Does not exist

upstream
Released (4.11~rc1)
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
trusty
Released (4.4.0-1022.22)
upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1060.69)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
upstream
Released (4.11~rc1)
xenial Not vulnerable
(4.11.0-1009.9)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Ignored
(was needed ESM criteria)
linux-flo
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.11~rc1)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.13.0-1002.5)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Ignored
(end of standard support, was needed)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.13.0-26.29~16.04.2)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.13.0-26.29~16.04.2)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1026.31)
linux-lts-utopic
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.11~rc1)
xenial Does not exist

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

bionic Does not exist

trusty Ignored
(end of life, was needs-triage)
upstream
Released (4.11~rc1)
xenial Does not exist

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

bionic Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (4.11~rc1)
xenial Does not exist

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

bionic Does not exist

trusty
Released (4.4.0-127.153~14.04.1)
upstream
Released (4.11~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1002.3)
trusty Does not exist

upstream
Released (4.11~rc1)
xenial Not vulnerable
(4.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.13.0-1004.4)
bionic Not vulnerable
(4.13.0-1005.5)
trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1090.98)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1093.98)
bionic Not vulnerable

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1093.98)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H