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CVE-2017-1000363

Published: 25 May 2017

Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.

From the Ubuntu Security Team

Roee Hay discovered that the parallel port printer driver in the Linux kernel did not properly bounds check passed arguments. A local attacker with write access to the kernel command line arguments could use this to execute arbitrary code.

Priority

Low

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.10.0-26.30)
trusty
Released (3.13.0-123.172)
xenial
Released (4.4.0-83.106)
yakkety
Released (4.8.0-58.63)
zesty
Released (4.10.0-26.30)
bionic Not vulnerable
(4.13.0-16.19)
upstream
Released (4.12~rc2)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 3e21f4af170bebf47c187c1ff8bf155583c9f3b1
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 (4.12~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 (4.4.0-1022.31)
yakkety Does not exist

zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

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

zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.12~rc2)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1018.18)
yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~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)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
bionic Does not exist

upstream
Released (4.12~rc2)
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 (4.12~rc2)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.8.0-58.63~16.04.1)
yakkety Does not exist

zesty Does not exist

upstream
Released (4.12~rc2)
bionic Not vulnerable

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

trusty Does not exist

xenial
Released (4.8.0-58.63~16.04.1)
yakkety Does not exist

zesty Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
upstream
Released (4.12~rc2)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

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

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
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 (4.12~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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~rc2)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Ignored
(end of life, was needed)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~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

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~rc2)
linux-lts-xenial
Launchpad, Ubuntu, Debian
artful Does not exist

trusty
Released (4.4.0-83.106~14.04.1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~rc2)
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 (4.12~rc2)
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 (4.12~rc2)
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

bionic Does not exist

upstream
Released (4.12~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 (4.12~rc2)
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 (4.12~rc2)
bionic Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.10.0-1010.13)
trusty Does not exist

xenial
Released (4.4.0-1061.69)
yakkety
Released (4.8.0-1042.46)
zesty
Released (4.10.0-1010.13)
bionic Not vulnerable
(4.13.0-1005.5)
upstream
Released (4.12~rc2)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4.0-1063.68)
trusty Does not exist

xenial
Released (4.4.0-1063.68)
yakkety Ignored
(end of life, was pending)
zesty
Released (4.4.0-1063.68)
bionic Not vulnerable

upstream
Released (4.12~rc2)
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 (4.12~rc2)

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