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CVE-2017-18270

Published: 18 May 2018

In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.

From the Ubuntu Security Team

It was discovered that the keyring subsystem in the Linux kernel did not properly prevent a user from creating keyrings for other users. A local attacker could use this cause a denial of service or expose sensitive information.

Priority

Medium

CVSS 3 base score: 7.1

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-17.20)
bionic Not vulnerable
(4.13.0-17.20)
cosmic Not vulnerable
(4.15.0-20.21)
precise Ignored
(was needed ESM criteria)
trusty
Released (3.13.0-157.207)
upstream
Released (4.14~rc3)
xenial
Released (4.4.0-98.121)
Patches:
Introduced by

69664cf16af4f31cd54d77948a4baf9c7e0ca7b9

Fixed by 237bbd29f7a049d310d907f4b2716a7feef9abf3
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
cosmic Not vulnerable
(4.15.0-1007.7)
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (4.14~rc3)
xenial
Released (4.4.0-1039.48)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
cosmic Not vulnerable
(4.15.0-1009.9)
precise Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
upstream
Released (4.14~rc3)
xenial
Released (4.13.0-1005.7)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-1003.3~18.04.1)
cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial Not vulnerable
(4.15.0-1002.2)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial Ignored
(was needed ESM criteria)
linux-flo
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 [abandoned])
upstream
Released (4.14~rc3)
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
cosmic Not vulnerable
(4.15.0-1006.6)
precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial
Released (4.13.0-1002.5)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial Ignored
(was needs-triage now end-of-life)
linux-goldfish
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 [abandoned])
upstream
Released (4.14~rc3)
xenial Ignored
(was needs-triage now end-of-life)
linux-grouper
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 [abandoned])
upstream
Released (4.14~rc3)
xenial Does not exist

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

bionic Not vulnerable

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial
Released (4.13.0-26.29~16.04.2)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.18.0-8.9~18.04.1)
cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
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)
cosmic Not vulnerable
(4.15.0-1008.8)
precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial
Released (4.4.0-1009.14)
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

precise Ignored
(was needed ESM criteria)
trusty Does not exist

upstream
Released (4.14~rc3)
xenial Does not exist

linux-lts-utopic
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 [out of standard support])
upstream
Released (4.14~rc3)
xenial Does not exist

linux-lts-vivid
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 [out of standard support])
upstream
Released (4.14~rc3)
xenial 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 [out of standard support])
upstream
Released (4.14~rc3)
xenial 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
Released (4.4.0-98.121~14.04.1)
upstream
Released (4.14~rc3)
xenial 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 [abandoned])
upstream
Released (4.14~rc3)
xenial 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 [abandoned])
upstream
Released (4.14~rc3)
xenial Ignored
(abandoned)
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 [abandoned])
upstream
Released (4.14~rc3)
xenial 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)
precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial Not vulnerable
(4.13.0-1008.9)
linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1006.6)
bionic Not vulnerable
(4.13.0-1006.6)
cosmic Not vulnerable
(4.15.0-1010.11)
precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial
Released (4.4.0-1076.84)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1078.83)
bionic Not vulnerable

cosmic Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.14~rc3)
xenial
Released (4.4.0-1078.83)