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CVE-2019-12984

Published: 26 June 2019

A NULL pointer dereference vulnerability in the function nfc_genl_deactivate_target() in net/nfc/netlink.c in the Linux kernel before 5.1.13 can be triggered by a malicious user-mode program that omits certain NFC attributes, leading to denial of service.

From the Ubuntu Security Team

It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash).

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
xenial Not vulnerable
(4.2.0-16.19)
bionic
Released (4.15.0-58.64)
cosmic Ignored
(end of life)
disco
Released (5.0.0-25.26)
eoan Not vulnerable
(5.2.0-8.9)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc6)
Patches:
Introduced by

4d63adfe12dd9cb61ed8badb4d798955399048c2

Fixed by 385097a3675749cbc9e97c085c0e5dfe4269ca51
linux-flo
Launchpad, Ubuntu, Debian
upstream
Released (5.2~rc6)
trusty Does not exist

xenial Ignored
(abandoned)
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

linux-aws
Launchpad, Ubuntu, Debian
upstream
Released (5.2~rc6)
trusty Ignored
(was needs-triage ESM criteria)
xenial Not vulnerable
(4.4.0-1001.10)
bionic
Released (4.15.0-1047.49)
cosmic Ignored
(end of life)
disco
Released (5.0.0-1014.16)
eoan Not vulnerable
(5.3.0-1003.3)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1014.14~18.04.1)
cosmic Ignored
(end of life)
disco
Released (5.0.0-1014.14)
eoan Not vulnerable
(5.0.0-1014.14)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc6)
xenial
Released (4.15.0-1055.60)
linux-aws-hwe
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

upstream
Released (5.2~rc6)
xenial
Released (4.15.0-1047.49~16.04.1)
linux-aws-5.0
Launchpad, Ubuntu, Debian
upstream
Released (5.2~rc6)
trusty Does not exist

xenial Does not exist

bionic Not vulnerable
(5.0.0-1021.24~18.04.1)
disco Does not exist

eoan Does not exist

linux-oem-5.4
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

eoan Does not exist

upstream
Released (5.2~rc6)
linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1007.8~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1014.14~18.04.1)
cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial
Released (4.15.0-1055.60)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Ignored
(end of life, was needs-triage)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1040.42)
cosmic Ignored
(end of life)
disco
Released (5.0.0-1013.13)
eoan Not vulnerable
(5.0.0-1013.13)
trusty Does not exist

upstream
Released (5.2~rc6)
xenial
Released (4.15.0-1040.42~16.04.1)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1008.9~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1040.42)
cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Ignored
(end of standard support)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1040.42)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1013.13~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Ignored
(end of life)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-25.26~18.04.1)
cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial
Released (4.15.0-58.64~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was pending)
cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial
Released (4.15.0-58.64~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1042.42)
cosmic Ignored
(end of life)
disco
Released (5.0.0-1013.14)
eoan Not vulnerable
(5.0.0-1013.14)
trusty Does not exist

upstream
Released (5.2~rc6)
xenial Not vulnerable
(4.4.0-1004.9)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

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

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Ignored
(abandoned)
linux-manta
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1050.57)
cosmic Ignored
(end of life)
disco
Released (4.15.0-1050.57)
eoan
Released (4.15.0-1050.57)
trusty Does not exist

upstream
Released (5.2~rc6)
xenial Ignored
(end of standard support, was needs-triage)
linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1018.20)
disco Ignored
(end of life, was pending)
eoan
Released (5.0.0-1018.20)
trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1021.23)
cosmic Ignored
(end of life)
disco
Released (5.0.0-1004.8)
eoan Not vulnerable
(5.3.0-1002.2)
trusty Does not exist

upstream
Released (5.2~rc6)
xenial
Released (4.15.0-1021.23~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1007.12~18.04.1)
disco Does not exist

eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1043.46)
cosmic Ignored
(end of life)
disco
Released (5.0.0-1014.14)
eoan Not vulnerable
(5.0.0-1014.14)
trusty Does not exist

upstream
Released (5.2~rc6)
xenial Not vulnerable
(4.2.0-1013.19)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1060.66)
cosmic Does not exist

disco
Released (5.0.0-1018.19)
eoan Does not exist

trusty Does not exist

upstream
Released (5.2~rc6)
xenial Not vulnerable
(4.4.0-1012.12)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H