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CVE-2017-11176

Published: 11 July 2017

The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.

From the Ubuntu Security Team

It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. 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
trusty
Released (3.13.0-135.184)
xenial
Released (4.4.0-93.116)
yakkety Ignored
(end of life)
zesty
Released (4.10.0-38.42)
bionic Not vulnerable
(4.13.0-16.19)
upstream
Released (4.13~rc1)
artful Not vulnerable
(4.11.0-13.19)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by f991af3daabaecff34684fd51fac80319d1baad1
linux-armadaxp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~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 (4.4.0-1032.41)
yakkety Does not exist

zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.13~rc1)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial Not vulnerable
(4.11.0-1009.9)
yakkety Does not exist

zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.13~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 (4.13~rc1)
linux-flo
Launchpad, Ubuntu, Debian
artful Does not exist

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

bionic Does not exist

upstream
Released (4.13~rc1)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.10.0-1008.8)
yakkety Does not exist

zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.13~rc1)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1028.28)
yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~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)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
bionic Does not exist

upstream
Released (4.13~rc1)
linux-grouper
Launchpad, Ubuntu, Debian
artful Does not exist

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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

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

zesty Does not exist

bionic Not vulnerable

upstream
Released (4.13~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)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.13~rc1)
bionic
Released (4.18.0-8.9~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1007.12)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.13~rc1)
linux-linaro-omap
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-linaro-shared
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-lts-quantal
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-lts-saucy
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-lts-xenial
Launchpad, Ubuntu, Debian
artful Does not exist

trusty
Released (4.4.0-93.116~14.04.1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-maguro
Launchpad, Ubuntu, Debian
artful Does not exist

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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)
linux-mako
Launchpad, Ubuntu, Debian
artful Does not exist

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

bionic Does not exist

upstream
Released (4.13~rc1)
linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

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

yakkety Does not exist

zesty Does not exist

upstream
Released (4.13~rc1)
bionic Does not exist

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 (4.13~rc1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

upstream
Released (4.13~rc1)
bionic Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.13.0-1004.4)
trusty Does not exist

xenial
Released (4.4.0-1071.79)
yakkety Ignored
(end of life)
zesty
Released (4.10.0-1020.23)
bionic Not vulnerable
(4.13.0-1005.5)
upstream
Released (4.13~rc1)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4.0-1073.78)
trusty Does not exist

xenial
Released (4.4.0-1073.78)
yakkety Ignored
(end of life)
zesty
Released (4.4.0-1073.78)
bionic Not vulnerable

upstream
Released (4.13~rc1)
linux-ti-omap4
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.13~rc1)

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