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CVE-2017-17712

Published: 15 December 2017

The raw_sendmsg() function in net/ipv4/raw.c in the Linux kernel through 4.14.6 has a race condition in inet->hdrincl that leads to uninitialized stack pointer usage; this allows a local user to execute code and gain privileges.

From the Ubuntu Security Team

Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contained a race condition leading to uninitialized pointer usage. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Notes

AuthorNote
seth-arnold
I haven't tested the exploit; 'high' may or may not be
appropriate for our kernels. Please feel free to re-adjust.

Priority

High

Cvss 3 Severity Score

7.0

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-10.11)
upstream
Released (4.15~rc4)
trusty Not vulnerable

xenial
Released (4.4.0-116.140)
artful
Released (4.13.0-36.40)
zesty Ignored
(end of life)
Patches:
Introduced by

c008ba5bdc9fa830e1a349b20b0be5a137bdef7a

Fixed by 8f659a03a0ba9289b9aeb9b4470e6fb263d6f483
linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.15~rc4)
trusty Does not exist

xenial Does not exist

artful Does not exist

zesty Does not exist

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

upstream
Released (4.15~rc4)
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

linux-armadaxp
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.15~rc4)
trusty Does not exist

xenial Does not exist

zesty Does not exist

artful Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.15~rc4)
artful Does not exist

trusty
Released (4.4.0-1014.14)
xenial
Released (4.4.0-1052.61)
zesty Does not exist

linux-ti-omap4
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-lts-quantal
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
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

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-goldfish
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [abandoned])
xenial Not vulnerable

zesty Not vulnerable

artful Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-grouper
Launchpad, Ubuntu, Debian
artful 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 (4.15~rc4)
linux-flo
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

artful Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-mako
Launchpad, Ubuntu, Debian
artful Does not exist

xenial Ignored
(abandoned)
zesty Does not exist

bionic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.15~rc4)
linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.15~rc4)
xenial Does not exist

zesty Does not exist

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

xenial Does not exist

zesty Does not exist

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

upstream
Released (4.15~rc4)
linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1014.15)
trusty Does not exist

xenial
Released (4.4.0-1085.93)
zesty Ignored
(end of life)
bionic Not vulnerable
(4.15.0-1006.7)
upstream
Released (4.15~rc4)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

xenial Does not exist

zesty Does not exist

trusty Ignored
(end of life, was needs-triage)
bionic Does not exist

upstream
Released (4.15~rc4)
linux-lts-wily
Launchpad, Ubuntu, Debian
artful Does not exist

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

upstream
Released (4.15~rc4)
xenial Does not exist

zesty Does not exist

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

zesty Does not exist

bionic Does not exist

trusty
Released (4.4.0-116.140~14.04.1)
upstream
Released (4.15~rc4)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1088.93)
trusty Does not exist

xenial
Released (4.4.0-1087.92)
zesty Ignored
(end of life)
bionic Not vulnerable

upstream
Released (4.15~rc4)
linux-gke
Launchpad, Ubuntu, Debian
trusty Does not exist

zesty Does not exist

artful Does not exist

xenial Ignored
(end of standard support, was needed)
bionic Does not exist

upstream
Released (4.15~rc4)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-36.40~16.04.1)
zesty Does not exist

bionic Not vulnerable

upstream
Released (4.15~rc4)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-36.40~16.04.1)
zesty Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
upstream
Released (4.15~rc4)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial
Released (4.13.0-1011.14)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.15~rc4)
linux-gcp
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-1011.15)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.15~rc4)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-9025.27)
zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc4)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1019.24)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.15~rc4)
linux-oem
Launchpad, Ubuntu, Debian
trusty Does not exist

artful Does not exist

xenial
Released (4.13.0-1021.23)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.3)
upstream
Released (4.15~rc4)
linux-lts-saucy
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist

upstream
Released (4.15~rc4)
xenial Does not exist

zesty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

trusty Does not exist

upstream
Released (4.15~rc4)
xenial Does not exist

zesty Does not exist

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

bionic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
upstream
Released (4.15~rc4)
xenial Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 7.0
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H