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CVE-2017-1000365

Published: 19 June 2017

The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but does not take the argument and environment pointers into account, which allows attackers to bypass this limitation. This affects Linux Kernel versions 4.11.5 and earlier. It appears that this feature was introduced in the Linux Kernel version 2.6.23.

From the Ubuntu Security Team

It was discovered that the Linux kernel did not properly restrict RLIMIT_STACK size. A local attacker could use this in conjunction with another vulnerability to possibly execute arbitrary code.

Notes

AuthorNote
sbeattie
proposed patch from kees in patchwork link

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.11.0-10.15)
trusty
Released (3.13.0-126.175)
xenial
Released (4.4.0-89.112)
yakkety Ignored
(end of life, was pending)
zesty
Released (4.10.0-30.34)
bionic Not vulnerable
(4.13.0-16.19)
upstream
Released (4.12~rc7)
Patches:
Introduced by

b6a2fea39318e43fee84fa7b0b90d68bed92d2ba

Fixed by 98da7d08850fb8bdeb395d6368ed15753304aa0c
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~rc7)
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 (4.4.0-1028.37)
yakkety Does not exist

zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.12~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1024.24)
yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~rc7)
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)
upstream
Released (4.12~rc7)
bionic Does not exist

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~rc7)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.10.0-30.34~16.04.1)
yakkety Does not exist

zesty Does not exist

bionic Not vulnerable

upstream
Released (4.12~rc7)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.10.0-30.34~16.04.1)
yakkety Does not exist

zesty Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
upstream
Released (4.12~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
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~rc7)
linux-lts-xenial
Launchpad, Ubuntu, Debian
artful Does not exist

trusty
Released (4.4.0-89.112~14.04.1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.12~rc7)
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~rc7)
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~rc7)
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~rc7)
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

upstream
Released (4.12~rc7)
bionic Not vulnerable
(4.15.0-1002.3)
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

bionic Does not exist

upstream
Released (4.12~rc7)
linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.10.0-1013.16)
trusty Does not exist

xenial
Released (4.4.0-1067.75)
yakkety Ignored
(end of life)
zesty
Released (4.10.0-1013.16)
bionic Not vulnerable
(4.13.0-1005.5)
upstream
Released (4.12~rc7)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4.0-1069.74)
trusty Does not exist

xenial
Released (4.4.0-1069.74)
yakkety Ignored
(end of life)
zesty
Released (4.4.0-1069.74)
bionic Not vulnerable

upstream
Released (4.12~rc7)
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

upstream
Released (4.12~rc7)
bionic Does not exist

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