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CVE-2019-16089

Publication date 6 September 2019

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

4.1 · Medium

Score breakdown

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).

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-42.46
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-109.110
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored
linux-aws 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-1020.20
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-1077.81
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored
linux-aws-5.0 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.11 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.3 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
18.04 LTS bionic
Fixed 5.3.0-1032.34~18.04.2
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1020.20~18.04.2
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-5.8 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-hwe 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Fixed 4.15.0-1079.83~16.04.1
14.04 LTS trusty Not in release
linux-azure 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-1022.22
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial
Fixed 4.15.0-1091.101~16.04.1
14.04 LTS trusty
linux-azure-4.15 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
18.04 LTS bionic
Fixed 4.15.0-1091.101
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.11 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.3 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Fixed 5.3.0-1034.35~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1022.22~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-5.8 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-edge 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-bluefield 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-dell300x 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-1021.21
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial
Fixed 4.15.0-1080.90~16.04.1
14.04 LTS trusty Not in release
linux-gcp-4.15 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
18.04 LTS bionic
Fixed 4.15.0-1080.90
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.3 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Fixed 5.3.0-1032.34~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1021.21~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-5.8 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gcp-edge 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-gke-4.15 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Fixed 4.15.0-1066.69
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.0 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Fixed 5.0.0-1045.46
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.3 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
18.04 LTS bionic
Fixed 5.3.0-1032.34~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gkeop 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gkeop-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Fixed 5.3.0-64.58~18.04.1
16.04 LTS xenial
Fixed 4.15.0-112.113~16.04.1
14.04 LTS trusty Not in release
linux-hwe-5.11 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-42.46~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-5.8 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-hwe-edge 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-kvm 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-1020.20
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-1069.70
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
linux-lts-trusty 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-lts-xenial 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Ignored
linux-oem 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-1091.101
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-oem-5.10 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.13 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-5.6 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Ignored
19.10 eoan Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oem-osp1 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 5.0.0-1065.70
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-1021.21
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-1048.52
16.04 LTS xenial
Fixed 4.15.0-1050.54~16.04.1
14.04 LTS trusty Not in release
linux-oracle-5.0 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.11 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.3 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
18.04 LTS bionic
Fixed 5.3.0-1030.32~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1021.21~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle-5.8 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-1015.15
19.10 eoan Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi-5.4 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 5.4.0-1015.15~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi2 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Ignored
19.10 eoan Ignored
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-1065.69
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
linux-raspi2-5.3 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
18.04 LTS bionic
Fixed 5.3.0-1030.32~18.04.2
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv 21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Fixed 5.4.0-30.34
19.10 eoan Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv-5.11 21.04 hirsute Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-riscv-5.8 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal
Not affected
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-snapdragon 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Ignored
18.04 LTS bionic
Fixed 4.15.0-1083.91
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release

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Notes

sbeattie

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 4.1 · Medium
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

References

Related Ubuntu Security Notices (USN)

    • USN-4414-1
    • Linux kernel vulnerabilities
    • 6 July 2020
    • USN-4425-1
    • Linux kernel vulnerabilities
    • 27 July 2020
    • USN-4439-1
    • Linux kernel vulnerabilities
    • 27 July 2020
    • USN-4440-1
    • linux kernel vulnerabilities
    • 31 July 2020

Other references