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CVE-2017-15649

Published: 19 October 2017

net/packet/af_packet.c in the Linux kernel before 4.13.6 allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free, a different vulnerability than CVE-2017-6346.

From the Ubuntu Security Team

It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. 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

7.8

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
upstream
Released (4.14~rc4)
zesty Ignored
(end of life)
bionic Not vulnerable
(4.13.0-17.20)
trusty
Released (3.13.0-157.207)
xenial
Released (4.4.0-101.124)
artful
Released (4.13.0-17.20)
cosmic Not vulnerable
(4.15.0-20.21)
Patches:
Introduced by

dc99f600698dcac69b8f56dda9a8a00d645c5ffc

Fixed by 4971613c1639d8e5f102c4e797c3bf8f83a5a69e
Introduced by

dc99f600698dcac69b8f56dda9a8a00d645c5ffc

Fixed by 008ba2a13f2d04c947adc536d19debb8fe66f110
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

upstream
Released (4.14~rc4)
bionic Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
cosmic Not vulnerable
(4.15.0-1007.7)
upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.15.0-1001.1)
trusty
Released (4.4.0-1003.3)
xenial
Released (4.4.0-1041.50)
zesty Does not exist

artful Does not exist

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

upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.15.0-1002.2)
linux-azure-edge
Launchpad, Ubuntu, Debian
cosmic Does not exist

trusty Does not exist

xenial Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.18.0-1003.3~18.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Ignored
(was needed ESM criteria)
zesty Does not exist

upstream
Released (4.14~rc4)
bionic Does not exist

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

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.15.0-1001.1)
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

upstream
Released (4.14~rc4)
bionic Does not exist

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)
upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Not vulnerable

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

upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.18.0-8.9~18.04.1)
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

upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.15.0-1002.2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc4)
bionic Does not exist

artful Does not exist

cosmic Does not exist

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

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc4)
bionic 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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

upstream
Released (4.14~rc4)
bionic Does not exist

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

zesty Does not exist

upstream
Released (4.14~rc4)
bionic Does not exist

cosmic Does not exist

linux-maguro
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

upstream
Released (4.14~rc4)
bionic Does not exist

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

cosmic Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

upstream
Released (4.14~rc4)
bionic 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

upstream
Released (4.14~rc4)
bionic Does not exist

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

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

xenial Not vulnerable
(4.13.0-1008.9)
zesty Does not exist

upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.15.0-1002.3)
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

upstream
Released (4.14~rc4)
bionic Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1006.6)
cosmic Not vulnerable
(4.15.0-1010.11)
trusty Does not exist

xenial
Released (4.4.0-1077.85)
zesty Ignored
(end of life)
upstream
Released (4.14~rc4)
bionic Not vulnerable
(4.13.0-1006.6)
linux-ti-omap4
Launchpad, Ubuntu, Debian
artful Does not exist

cosmic Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

upstream
Released (4.14~rc4)
bionic Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
upstream
Released (4.14~rc4)
bionic Does not exist

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

zesty Does not exist

artful Does not exist

cosmic Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
upstream
Released (4.14~rc4)
bionic Not vulnerable

trusty Does not exist

xenial
Released (4.4.0-1079.84)
zesty
Released (4.4.0-1079.84)
artful
Released (4.4.0-1079.84)
cosmic 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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H