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CVE-2019-15223

Published: 19 August 2019

An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the sound/usb/line6/driver.c driver.

From the Ubuntu Security Team

It was discovered that the Line 6 USB driver for the Linux kernel contained a race condition when the device was disconnected. A physically proximate attacker could use this to cause a denial of service (system crash).

Notes

AuthorNote
tyhicks
Setting priority to negligible since this simple DoS requires a
malicious USB device to be inserted into the system

Priority

Negligible

Cvss 3 Severity Score

4.6

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
disco
Released (5.0.0-31.33)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.2.0-16.19)
Patches:
Introduced by

7f84ff68be05ec7a5d2acf8fdc734fe5897af48f

Fixed by 0b074ab7fc0d575247b9cc9f93bb7e007ca38840
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco
Released (5.0.0-1018.20)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.4.0-1001.10)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.15.0-1030.31~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1022.23~18.04.1)
disco
Released (5.0.0-1022.23)
trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.11.0-1009.9)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1022.23~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.11.0-1009.9)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco
Released (5.0.0-1020.20)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.10.0-1004.4)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1030.32)
disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1020.20~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-31.33~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-15.16~18.04.1)
disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.8.0-36.36~16.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco
Released (5.0.0-1019.20)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.4.0-1004.9)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

trusty Does not exist

upstream
Released (5.2~rc3)
xenial Does not exist

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

disco Does not exist

trusty Ignored
(was needs-triage ESM criteria)
upstream
Released (5.2~rc3)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.3)
disco Not vulnerable
(4.15.0-1021.24)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Ignored
(end of standard support, was needs-triage)
linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1007.9)
disco Not vulnerable
(4.15.0-1007.9)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.15.0-1007.9~16.04.1)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-1005.5)
disco
Released (5.0.0-1019.19)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.2.0-1013.19)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.4.0-1077.82)
disco
Released (5.0.0-1023.24)
trusty Does not exist

upstream
Released (5.2~rc3)
xenial Not vulnerable
(4.4.0-1012.12)

Severity score breakdown

Parameter Value
Base score 4.6
Attack vector Physical
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H