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CVE-2019-16233

Published: 11 September 2019

drivers/scsi/qla2xxx/qla_os.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.

From the Ubuntu Security Team

It was discovered that the QLogic Fibre Channel driver in the Linux kernel did not properly check for error, leading to a NULL pointer dereference. A local attacker could possibly use this to cause a denial of service (system crash).

Priority

Low

Cvss 3 Severity Score

4.1

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-74.84)
disco
Released (5.0.0-38.41)
eoan
Released (5.3.0-24.26)
focal Not vulnerable
(5.4.0-9.12)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.4~rc5)
xenial
Released (4.4.0-178.208)
Patches:
Introduced by

68ca949cdb04b4dc71451a999148fbc5f187a220

Fixed by 35a79a63517981a8aea395497c548776347deda8
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

xenial
Released (4.15.0-1057.59~16.04.1)
trusty Does not exist

upstream
Released (5.4~rc5)
linux-azure
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1028.30~18.04.1)
disco
Released (5.0.0-1028.30)
eoan
Released (5.3.0-1008.9)
focal Not vulnerable
(5.4.0-1006.6)
trusty
Released (4.15.0-1066.71~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (5.4~rc5)
xenial
Released (4.15.0-1066.71)
linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

eoan Does not exist

focal Not vulnerable
(5.4.0-1002.4)
trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-aws
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1057.59)
disco
Released (5.0.0-1023.26)
eoan
Released (5.3.0-1008.9)
focal Not vulnerable
(5.4.0-1005.5)
trusty
Released (4.4.0-1066.70)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (5.4~rc5)
xenial
Released (4.4.0-1106.117)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1023.26~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1008.9~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Ignored
(end of standard support, was needs-triage)
linux-gcp
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1028.29~18.04.1)
disco
Released (5.0.0-1028.29)
eoan
Released (5.3.0-1009.10)
focal Not vulnerable
(5.4.0-1005.5)
trusty Does not exist

upstream
Released (5.4~rc5)
xenial
Released (4.15.0-1052.56)
linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-1009.10~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was needs-triage)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1050.53)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1027.28~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic
Released (5.3.0-26.28~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial
Released (4.15.0-74.83~16.04.1)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(end of life, was pending)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Ignored
(end of life, was needs-triage)
linux-kvm
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1052.52)
disco
Released (5.0.0-1024.26)
eoan
Released (5.3.0-1008.9)
focal Not vulnerable
(5.4.0-1004.4)
trusty Does not exist

upstream
Released (5.4~rc5)
xenial
Released (4.4.0-1070.77)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

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

disco Does not exist

eoan Does not exist

focal Does not exist

trusty
Released (4.4.0-178.208~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (5.4~rc5)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1066.76)
disco Ignored
(end of life)
eoan
Released (4.15.0-1066.76)
focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Ignored
(end of standard support, was needs-triage)
linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1033.38)
disco Ignored
(end of life)
eoan
Released (5.0.0-1033.38)
focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1031.34)
disco
Released (5.0.0-1009.14)
eoan
Released (5.3.0-1007.8)
focal Not vulnerable
(5.4.0-1005.5)
trusty Does not exist

upstream
Released (5.4~rc5)
xenial
Released (4.15.0-1031.34~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic
Released (5.0.0-1009.14~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1011.12~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1053.57)
disco
Released (5.0.0-1024.25)
eoan
Released (5.3.0-1014.16)
focal Ignored
(end of life, was needed)
trusty Does not exist

upstream
Released (5.4~rc5)
xenial
Released (4.4.0-1132.141)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.3.0-1017.19~18.04.1)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1070.77)
disco Ignored
(end of life, was pending)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream
Released (5.4~rc5)
xenial
Released (4.4.0-1136.144)

Severity score breakdown

Parameter Value
Base score 4.1
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H