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CVE-2017-15129

Published: 9 January 2018

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

From the Ubuntu Security Team

It was discovered that a use-after-free vulnerability existed in the network namespaces 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

4.7

Score breakdown

Status

Package Release Status
linux-aws
Launchpad, Ubuntu, Debian
artful Does not exist

trusty
Released (4.4.0-1016.16)
xenial
Released (4.4.0-1054.63)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.15~rc5)
linux-azure
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial
Released (4.13.0-1014.17)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.15~rc5)
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 (4.15~rc5)
linux-flo
Launchpad, Ubuntu, Debian
trusty Does not exist
(trusty was ignored [abandoned])
xenial Ignored
(abandoned)
zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc5)
artful Does not exist

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

trusty Does not exist

xenial
Released (4.13.0-1012.16)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.15~rc5)
linux-gke
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

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

bionic Does not exist

upstream
Released (4.15~rc5)
linux-goldfish
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist
(trusty was ignored [abandoned])
xenial Not vulnerable

zesty Ignored
(end of life)
bionic Does not exist

upstream
Released (4.15~rc5)
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~rc5)
linux-hwe
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-38.43~16.04.1)
zesty Does not exist

bionic Not vulnerable

upstream
Released (4.15~rc5)
linux-hwe-edge
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-38.43~16.04.1)
zesty Does not exist

bionic
Released (4.18.0-8.9~18.04.1)
upstream
Released (4.15~rc5)
linux-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.4.0-1020.25)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.15~rc5)
linux-linaro-vexpress
Launchpad, Ubuntu, Debian
zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc5)
artful Does not exist

trusty Does not exist

xenial Does not exist

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~rc5)
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

upstream
Released (4.15~rc5)
bionic Does not exist

linux-lts-saucy
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~rc5)
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

zesty Does not exist

upstream
Released (4.15~rc5)
bionic Does not exist

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

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc5)
linux-lts-vivid
Launchpad, Ubuntu, Debian
artful Does not exist

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

zesty Does not exist

bionic Does not exist

upstream
Released (4.15~rc5)
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

bionic Does not exist

upstream
Released (4.15~rc5)
linux-lts-xenial
Launchpad, Ubuntu, Debian
artful Does not exist

trusty
Released (4.4.0-119.143~14.04.1)
xenial Does not exist

zesty Does not exist

upstream
Released (4.15~rc5)
bionic Does not exist

linux-maguro
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~rc5)
linux-mako
Launchpad, Ubuntu, Debian
artful Does not exist

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

bionic Does not exist

upstream
Released (4.15~rc5)
linux-manta
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~rc5)
linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

trusty Does not exist

xenial
Released (4.13.0-1022.24)
zesty Does not exist

bionic Not vulnerable
(4.15.0-1002.3)
upstream
Released (4.15~rc5)
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~rc5)
linux-raspi2
Launchpad, Ubuntu, Debian
artful
Released (4.13.0-1016.17)
trusty Does not exist

xenial
Released (4.4.0-1086.94)
zesty Ignored
(end of life)
bionic Not vulnerable
(4.15.0-1006.7)
upstream
Released (4.15~rc5)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful
Released (4.4.0-1088.93)
trusty Does not exist

xenial
Released (4.4.0-1088.93)
zesty Ignored
(end of life)
bionic Not vulnerable

upstream
Released (4.15~rc5)
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~rc5)
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-10.11)
upstream
Released (4.15~rc5)
artful
Released (4.13.0-38.43)
trusty Not vulnerable

xenial
Released (4.4.0-119.143)
zesty Ignored
(end of life)
Patches:
Introduced by

0c7aecd4bde4b7302cd41986d3a29e4f0b0ed218

Fixed by 21b5944350052d2583e82dd59b19a9ba94a007f0
linux-armadaxp
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.15~rc5)
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.15~rc5)
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

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

upstream
Released (4.15~rc5)
artful Does not exist

trusty Does not exist

xenial Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 4.7
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H