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CVE-2017-15299

Published: 14 October 2017

The KEYS subsystem in the Linux kernel through 4.13.7 mishandles use of add_key for a key that already exists but is uninstantiated, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted system call.

From the Ubuntu Security Team

Eric Biggers discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is uninstantiated. 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

5.5

Score breakdown

Status

Package Release Status
linux-armadaxp
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Not vulnerable
(4.15.0-1007.7)
trusty
Released (4.4.0-1003.3)
xenial
Released (4.4.0-1041.50)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.14~rc6)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Not vulnerable
(4.15.0-1009.9)
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~rc6)
linux-azure-edge
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Not vulnerable
(4.15.0-1002.2)
bionic Not vulnerable
(4.18.0-1003.3~18.04.1)
upstream
Released (4.14~rc6)
cosmic Does not exist

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

cosmic Does not exist

trusty Does not exist

xenial Ignored
(was needs-triage ESM criteria)
zesty Does not exist

upstream
Released (4.14~rc6)
bionic Does not exist

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

cosmic Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Not vulnerable
(4.15.0-1006.6)
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~rc6)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial
Released (4.4.0-1034.34)
zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
linux-goldfish
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic 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~rc6)
linux-grouper
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic 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~rc6)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic 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~rc6)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

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

bionic Not vulnerable
(4.18.0-8.9~18.04.1)
upstream
Released (4.14~rc6)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

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

xenial
Released (4.4.0-1010.15)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.14~rc6)
linux-linaro-shared
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
trusty Does not exist

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

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
linux-lts-quantal
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
linux-lts-saucy
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
linux-lts-utopic
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic 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~rc6)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic 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~rc6)
linux-lts-wily
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist
(trusty was ignored [end of standard support])
xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc6)
bionic Does not exist

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

cosmic Does not exist

trusty
Released (4.4.0-101.124~14.04.1)
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
linux-maguro
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [abandoned])
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
artful Does not exist

cosmic Does not exist

linux-mako
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
artful Does not exist

cosmic Does not exist

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

cosmic 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~rc6)
linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

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

xenial
Released (4.13.0-1010.11)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.3)
upstream
Released (4.14~rc6)
linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1008.8)
cosmic Not vulnerable
(4.15.0-1010.11)
trusty Does not exist

xenial
Released (4.4.0-1077.85)
zesty Ignored
(end of life)
bionic Not vulnerable
(4.13.0-1008.8)
upstream
Released (4.14~rc6)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1079.84)
cosmic Does not exist

trusty Does not exist

xenial
Released (4.4.0-1079.84)
zesty
Released (4.4.0-1079.84)
bionic Not vulnerable

upstream
Released (4.14~rc6)
linux-ti-omap4
Launchpad, Ubuntu, Debian
xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.14~rc6)
artful Does not exist

cosmic Does not exist

trusty Does not exist

linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-25.29)
upstream
Released (4.14~rc6)
artful
Released (4.13.0-19.22)
cosmic Not vulnerable
(4.15.0-20.21)
trusty
Released (3.13.0-161.211)
xenial
Released (4.4.0-101.124)
zesty Ignored
(end of life)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 60ff5b2f547af3828aebafd54daded44cfb0807a
linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.14~rc6)
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H