CVE-2019-12818
Published: 13 June 2019
An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.
From the Ubuntu Security Team
It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash).
Priority
Status
Package | Release | Status |
---|---|---|
linux
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-58.64)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(5.0.0-7.8)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.4.0-146.172)
|
|
Patches:
Introduced by
d646960f7986fefb460a2b062d5ccc8ccfeacc3a
|
||
linux-aws
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1047.49)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(5.0.0-1001.1)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.4.0-1081.91)
|
|
linux-aws-hwe
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.15.0-1047.49~16.04.1)
|
|
linux-azure
Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1014.14~18.04.1)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(5.0.0-1001.1)
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.15.0-1055.60)
|
|
linux-azure-edge
Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1014.14~18.04.1)
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.15.0-1055.60)
|
|
linux-euclid
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Ignored
(end of life, was needs-triage)
|
|
linux-flo
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-gcp
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1040.42)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(5.0.0-1001.1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.15.0-1040.42~16.04.1)
|
|
linux-gcp-edge
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1040.42)
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-gke
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Ignored
(end of standard support)
|
|
linux-gke-4.15
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1040.42)
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-gke-5.0
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1011.11~18.04.1)
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-goldfish
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Ignored
(end of life)
|
|
linux-grouper
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-hwe
Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-23.24~18.04.1)
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.15.0-58.64~16.04.1)
|
|
linux-hwe-edge
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-15.16~18.04.1)
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
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 |
Not vulnerable
(5.0.0-1001.1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.4.0-1044.50)
|
|
linux-lts-trusty
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-lts-utopic
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-lts-vivid
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-lts-wily
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Ignored
(was needs-triage ESM criteria)
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-maguro
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Does not exist
|
|
linux-mako
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-manta
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
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)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Ignored
(end of standard support, was needs-triage)
|
|
linux-oracle
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1021.23)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Released
(5.0.0-1004.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.15.0-1021.23~16.04.1)
|
|
linux-raspi2
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1043.46)
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(5.0.0-1004.4)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.4.0-1107.115)
|
|
linux-snapdragon
Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1060.66)
|
cosmic |
Does not exist
|
|
disco |
Not vulnerable
(5.0.0-1010.10)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.0)
|
|
xenial |
Released
(4.4.0-1111.116)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |