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CVE-2017-2647

Published: 31 March 2017

The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.

From the Ubuntu Security Team

It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash).

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 (3.18~rc1)
xenial Not vulnerable
(4.2.0-16.19)
artful Not vulnerable
(4.10.0-19.21)
cosmic Not vulnerable
(4.15.0-20.21)
trusty
Released (3.13.0-164.214)
yakkety Not vulnerable
(4.4.0-21.37)
zesty Not vulnerable
(4.8.0-22.24)
precise Ignored
(end of life)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81|c53ee259ad3da891e191dee7af119af340f9c01b
linux-armadaxp
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
This package is not directly supported by the Ubuntu Security Team
linux-goldfish
Launchpad, Ubuntu, Debian
upstream
Released (3.18~rc1)
bionic Does not exist

artful Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
linux-linaro-shared
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
linux-lts-quantal
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
linux-lts-saucy
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

precise Ignored
(end of life)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (3.18~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1007.7)
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

zesty Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
cosmic Does not exist

trusty Does not exist

xenial Not vulnerable
(4.15.0-1030.31~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (3.18~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1009.9)
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

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-1006.6~18.04.1)
upstream
Released (3.18~rc1)
cosmic Does not exist

trusty Does not exist

xenial Not vulnerable
(4.13.0-1003.3)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-9019.20)
zesty Does not exist

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Does not exist

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

linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (3.18~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1006.6)
trusty Does not exist

xenial Not vulnerable
(4.10.0-1004.4)
yakkety Does not exist

zesty Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-1004.5~18.04.1)
upstream
Released (3.18~rc1)
cosmic Does not exist

trusty Does not exist

xenial Does not exist

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

zesty Does not exist

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-13.14~18.04.1)
upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-13.14~18.04.1)
upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (3.18~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1008.8)
trusty Does not exist

xenial Not vulnerable
(4.4.0-1004.9)
zesty Does not exist

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise 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

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

upstream
Released (3.18~rc1)
artful Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
upstream
Released (3.18~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (3.18~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.18~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.18~rc1)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Does not exist

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

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.18~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

bionic Not vulnerable
(4.15.0-1002.3)
cosmic Not vulnerable
(4.15.0-1004.5)
trusty Does not exist

upstream
Released (3.18~rc1)
xenial Not vulnerable
(4.13.0-1008.9)
zesty Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.10.0-1004.6)
bionic Not vulnerable
(4.13.0-1005.5)
cosmic Not vulnerable
(4.15.0-1010.11)
precise Does not exist

trusty Does not exist

upstream
Released (3.18~rc1)
xenial Not vulnerable
(4.2.0-1013.19)
yakkety Not vulnerable
(4.4.0-1009.10)
zesty Not vulnerable
(4.8.0-1013.15)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4.0-1050.54)
bionic Not vulnerable

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (3.18~rc1)
xenial Not vulnerable
(4.4.0-1012.12)
yakkety Not vulnerable
(4.4.0-1012.12)
zesty Not vulnerable
(4.4.0-1029.32)

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