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CVE-2017-12153

Published: 21 September 2017

A security flaw was discovered in the nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This function does not check whether the required attributes are present in a Netlink request. This request can be issued by a user with the CAP_NET_ADMIN capability and may result in a NULL pointer dereference and system crash.

From the Ubuntu Security Team

Bo Zhang discovered that the netlink wireless configuration interface in the Linux kernel did not properly validate attributes when handling certain requests. A local attacker with the CAP_NET_ADMIN could use this to cause a denial of service (system crash).

Notes

AuthorNote
sbeattie
attacker needs CAP_NET_ADMIN either at system level or in a
namespace that also has had a WiFi interface moved into it.

Priority

Medium

Cvss 3 Severity Score

4.4

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-17.20)
trusty
Released (3.13.0-142.191)
xenial
Released (4.4.0-98.121)
zesty Ignored
(end of life, was pending)
bionic Not vulnerable
(4.13.0-17.20)
upstream
Released (4.14~rc2)
Patches:
Introduced by

e5497d766adb92bcbd1fa4a147e188f84f34b20a

Fixed by e785fa0a164aa11001cba931367c7f94ffaff888
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~rc2)
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~rc2)
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~rc2)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

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

upstream
Released (4.14~rc2)
bionic Does not exist

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~rc2)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-1002.5)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.14~rc2)
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~rc2)
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~rc2)
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~rc2)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-26.29~16.04.2)
zesty Does not exist

bionic Not vulnerable

upstream
Released (4.14~rc2)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-26.29~16.04.2)
zesty Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
upstream
Released (4.14~rc2)
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~rc2)
linux-linaro-omap
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~rc2)
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~rc2)
linux-linaro-vexpress
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~rc2)
linux-lts-quantal
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc2)
bionic Does not exist

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~rc2)
linux-lts-saucy
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~rc2)
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~rc2)
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~rc2)
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~rc2)
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

bionic Does not exist

upstream
Released (4.14~rc2)
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~rc2)
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~rc2)
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~rc2)
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~rc2)
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~rc2)
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~rc2)
linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1006.6)
trusty Does not exist

xenial
Released (4.4.0-1076.84)
zesty Ignored
(end of life, was pending)
bionic Not vulnerable
(4.13.0-1006.6)
upstream
Released (4.14~rc2)
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~rc2)
linux-ti-omap4
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~rc2)

Severity score breakdown

Parameter Value
Base score 4.4
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H