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CVE-2019-16089

Published: 6 September 2019

An issue was discovered in the Linux kernel through 5.2.13. nbd_genl_status in drivers/block/nbd.c does not check the nla_nest_start_noflag return value.

From the Ubuntu Security Team

It was discovered that the network block device (nbd) implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service (system crash).

Notes

AuthorNote
sbeattie
fix has not landed upstream as of 2020-04-22

Priority

Low

Cvss 3 Severity Score

4.1

Score breakdown

Status

Package Release Status
linux-oem-5.6
Launchpad, Ubuntu, Debian
focal Ignored
(was needed now end-of-life)
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

eoan Does not exist

groovy Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.8.0-1035.37~20.04.1)
upstream Needed

linux-azure-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.8.0-1033.35~20.04.1)
upstream Needed

linux-gcp-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.8.0-1032.34~20.04.1)
upstream Needed

linux-oracle-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.8.0-1031.32~20.04.2)
upstream Needed

linux-riscv-5.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.8.0-14.16~20.04.1)
upstream Needed

linux
Launchpad, Ubuntu, Debian
upstream Needed

xenial Not vulnerable
(4.4.0-2.16)
hirsute Not vulnerable
(5.8.0-36.40+21.04.1)
precise Ignored
(was needs-triage ESM criteria)
trusty Ignored
(was needs-triage ESM criteria)
bionic
Released (4.15.0-109.110)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-63.57\] now end-of-life)
focal
Released (5.4.0-42.46)
groovy Not vulnerable
(5.4.0-42.46)
Patches:
Introduced by

47d902b90a32a42a3d33aef3a02170fc6f70aa23

Fixed by local-2019-16089-fix
linux-hwe-5.11
Launchpad, Ubuntu, Debian
focal Not vulnerable
(5.11.0-22.23~20.04.1)
upstream Needed

trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
focal Not vulnerable
(5.11.0-1015.16~20.04.1)
upstream Needed

trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.13.0-1009.10)
hirsute Does not exist

upstream Needed

linux-aws-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.11.0-1009.9~20.04.2)
hirsute Does not exist

upstream Needed

linux-azure-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.11.0-1007.7~20.04.2)
hirsute Does not exist

upstream Needed

linux-oracle-5.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Not vulnerable
(5.11.0-1008.8~20.04.1)
hirsute Does not exist

upstream Needed

linux-bluefield
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

hirsute Does not exist

focal Not vulnerable
(5.4.0-1007.10)
upstream Needed

linux-hwe
Launchpad, Ubuntu, Debian
hirsute Does not exist

groovy Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-112.113~16.04.1)
bionic
Released (5.3.0-64.58~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Ignored
(was needed now end-of-life)
bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

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

upstream Needed

precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
xenial Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Ignored
(was needs-triage ESM criteria)
trusty Does not exist

xenial Does not exist

bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-oem
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Ignored
(was needs-triage now end-of-life)
bionic
Released (4.15.0-1091.101)
disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Does not exist

groovy Does not exist

linux-aws
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-1018.20+21.04.1)
upstream Needed

precise Does not exist

trusty Ignored
(was needs-triage ESM criteria)
xenial Not vulnerable
(4.4.0-1001.10)
bionic
Released (4.15.0-1077.81)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-1031.33\] now end-of-life)
focal
Released (5.4.0-1020.20)
groovy Not vulnerable
(5.4.0-1020.20)
linux-aws-hwe
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-1079.83~16.04.1)
bionic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (4.15.0-1066.69)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.0.0-1045.46)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.2.0-1013.19)
bionic
Released (4.15.0-1065.69)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-1029.31\] now end-of-life)
focal Ignored
(was needed now end-of-life)
groovy Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1013.15)
bionic
Released (4.15.0-1083.91)
disco Ignored
(reached end-of-life)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.0.0-1065.70)
disco Ignored
(reached end-of-life)
eoan Ignored
(reached end-of-life)
focal Does not exist

groovy Does not exist

linux-aws-5.0
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.3.0-1034.35~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.3.0-1032.34~18.04.1)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-oracle-5.0
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Ignored
(was needed now end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

linux-raspi2-5.3
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.3.0-1030.32~18.04.2)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.3.0-1032.34~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.3.0-1030.32~18.04.1)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-azure-4.15
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (4.15.0-1091.101)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.3.0-1032.34~18.04.2)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-gcp-4.15
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (4.15.0-1080.90)
eoan Does not exist

focal Does not exist

groovy Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-42.46~18.04.1)
focal Does not exist

groovy Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1015.15~18.04.1)
focal Does not exist

groovy Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1022.22~18.04.1)
focal Does not exist

groovy Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1021.21~18.04.1)
focal Does not exist

groovy Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1021.21~18.04.1)
focal Does not exist

groovy Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
hirsute Does not exist

upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic
Released (5.4.0-1020.20~18.04.2)
focal Does not exist

groovy Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-10.12+21.04.1)
upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

eoan Does not exist

focal
Released (5.4.0-30.34)
groovy Not vulnerable
(5.4.0-30.34)
linux-kvm
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-1010.11+21.04.1)
upstream Needed

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1004.9)
bionic
Released (4.15.0-1069.70)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-1025.27\] now end-of-life)
focal
Released (5.4.0-1020.20)
groovy Not vulnerable
(5.4.0-1020.20)
linux-raspi
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-1008.11+21.04.1)
upstream Needed

precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

eoan Does not exist

focal
Released (5.4.0-1015.15)
groovy Not vulnerable
(5.4.0-1015.15)
linux-hwe-5.8
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.8.0-23.24~20.04.1)
upstream Needed

linux-gke-5.4
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Not vulnerable
(5.4.0-1025.25~18.04.1)
upstream Needed

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Not vulnerable
(5.4.0-1001.1)
upstream Needed

linux-azure
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-1016.17+21.04.1)
upstream Needed

precise Does not exist

trusty
Released (4.15.0-1091.101~14.04.1)
xenial
Released (4.15.0-1091.101~16.04.1)
bionic Ignored
(was needed now end-of-life)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-1033.34\] now end-of-life)
focal
Released (5.4.0-1022.22)
groovy Not vulnerable
(5.4.0-1022.22)
linux-gcp
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-1015.15+21.04.1)
upstream Needed

precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-1080.90~16.04.1)
bionic Ignored
(was needed now end-of-life)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-1031.33\] now end-of-life)
focal
Released (5.4.0-1021.21)
groovy Not vulnerable
(5.4.0-1021.21)
linux-oracle
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(5.8.0-1014.14+21.04.1)
upstream Needed

precise Does not exist

trusty Does not exist

xenial
Released (4.15.0-1050.54~16.04.1)
bionic
Released (4.15.0-1048.52)
disco Ignored
(reached end-of-life)
eoan Ignored
(was pending \[5.3.0-1029.31\] now end-of-life)
focal
Released (5.4.0-1021.21)
groovy Not vulnerable
(5.4.0-1021.21)
linux-dell300x
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

bionic Not vulnerable
(4.15.0-1005.8)
upstream Needed

linux-oem-5.10
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.10.0-1008.9)
upstream Needed

linux-gkeop
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

xenial Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.4.0-1008.9)
upstream Needed

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

trusty Does not exist

bionic Does not exist

groovy Does not exist

hirsute Does not exist

focal Not vulnerable
(5.4.0-1033.35)
upstream Needed

xenial Ignored
(reached end of standard support)

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