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CVE-2014-0196

Published: 5 May 2014

The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the "LECHO & !OPOST" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings.

From the Ubuntu Security Team

A flaw was discovered in the Linux kernel's pseudo tty (pty) device. An unprivileged user could exploit this flaw to cause a denial of service (system crash) or potentially gain administrator privileges.

Notes

AuthorNote
jdstrand
android kernels (goldfish, grouper, maguro, mako and manta) are not
supported on the Ubuntu Touch 13.10 preview kernels
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.04 preview kernels

Priority

Critical

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
lucid
Released (2.6.32-58.121)
precise
Released (3.2.0-61.93)
quantal
Released (3.5.0-49.74)
saucy
Released (3.11.0-20.35)
trusty
Released (3.13.0-24.47)
upstream
Released (3.15~rc5)
utopic Not vulnerable
(3.13.0-24.47)
vivid Not vulnerable
(3.16.0-23.31)
wily Not vulnerable
(3.19.0-15.15)
xenial Not vulnerable
(4.2.0-16.19)
yakkety Not vulnerable
(4.4.0-21.37)
zesty Not vulnerable
(4.8.0-22.24)
Patches:
Introduced by

d945cb9cce20ac7143c2de8d88b187f62db99bdc

Fixed by 4291086b1f081b869c6d79e5b7441633dc3ace00
linux-armadaxp
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.2.0-1633.47)
quantal Ignored
(end of life, was pending)
saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
upstream
Released (3.15~rc5)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

zesty Does not exist

linux-ec2
Launchpad, Ubuntu, Debian
lucid
Released (2.6.32-363.77)
precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Ignored
(end of life, was needed)
upstream
Released (3.15~rc5)
utopic Not vulnerable
(3.4.0-3.12)
vivid Not vulnerable
(3.4.0-3.15)
wily Not vulnerable
(3.4.0-4.18)
xenial Not vulnerable
(3.4.0-5.22)
yakkety Not vulnerable
(3.4.0-3.15)
zesty Does not exist

linux-fsl-imx51
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist

upstream
Released (3.15~rc5)
xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

zesty Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Ignored
(end of life, was needed)
upstream
Released (3.15~rc5)
utopic Not vulnerable
(3.4.0-3.17)
vivid Not vulnerable
(3.4.0-4.23)
wily Not vulnerable
(3.4.0-4.24)
xenial Not vulnerable
(3.4.0-4.27)
yakkety Not vulnerable
(3.4.0-4.27)
zesty Not vulnerable
(3.4.0-4.27)
linux-grouper
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (3.15~rc5)
utopic Ignored
(end of life)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist

upstream
Released (3.15~rc5)
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
precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
quantal Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
quantal Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

precise Ignored
(end of life)
quantal Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.5.0-49.74~precise1)
quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.8.0-39.58~precise1)
quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.11.0-20.35~precise1)
quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.13.0-24.47~precise2)
saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Does not exist
(trusty was not-affected [4.2.0-18.22~14.04.1])
upstream
Released (3.15~rc5)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (3.15~rc5)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Ignored
(end of life, was needed)
upstream
Released (3.15~rc5)
utopic Not vulnerable
(3.4.0-5.31)
vivid Not vulnerable
(3.4.0-5.34)
wily Not vulnerable
(3.4.0-6.37)
xenial Not vulnerable
(3.4.0-7.40)
yakkety Not vulnerable
(3.4.0-5.34)
zesty Does not exist

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

precise Does not exist

quantal Does not exist

saucy Ignored

trusty Ignored
(end of life, was needed)
upstream
Released (3.15~rc5)
utopic Not vulnerable
(3.4.0-6.27)
vivid Not vulnerable
(3.4.0-6.29)
wily Not vulnerable
(3.4.0-7.32)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-mvl-dove
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Does not exist

quantal Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Ignored
(end of life)
quantal Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
vivid Does not exist

wily Not vulnerable
(4.2.0-1008.12)
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
precise Does not exist

trusty Does not exist

upstream
Released (3.15~rc5)
wily Does not exist

xenial Not vulnerable
(4.4.0-1012.12)
yakkety Not vulnerable
(4.4.0-1012.12)
zesty Not vulnerable
(4.4.0-1029.32)
linux-ti-omap4
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.2.0-1446.65)
quantal Ignored
(end of life, was pending)
saucy
Released (3.5.0-242.58)
trusty Does not exist

upstream
Released (3.15~rc5)
utopic Does not exist

vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist