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CVE-2019-3819

Publication date 25 January 2019

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

Cvss 3 Severity Score

4.4 · Medium

Score breakdown

A flaw was found in the Linux kernel in the function hid_debug_events_read() in drivers/hid/hid-debug.c file which may enter an infinite loop with certain parameters passed from a userspace. A local privileged user ("root") can cause a system lock up and a denial of service. Versions from v4.18 and newer are vulnerable.

From the Ubuntu Security Team

Vladis Dronov discovered that the debug interface for the Linux kernel's HID subsystem did not properly validate passed parameters in some situations. A local privileged attacker could use this to cause a denial of service (infinite loop).

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-60.67
16.04 LTS xenial
Fixed 4.4.0-145.171
14.04 LTS trusty
Not affected
linux-aws 19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-1047.49
16.04 LTS xenial
Fixed 4.4.0-1079.89
14.04 LTS trusty
Fixed 4.4.0-1040.43
linux-aws-5.0 19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-aws-hwe 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Fixed 4.15.0-1047.49~16.04.1
14.04 LTS trusty Not in release
linux-azure 19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 5.0.0-1014.14~18.04.1
16.04 LTS xenial
Fixed 4.15.0-1056.61
14.04 LTS trusty Ignored
linux-azure-5.3 19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-azure-edge 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 5.0.0-1014.14~18.04.1
16.04 LTS xenial
Fixed 4.15.0-1056.61
14.04 LTS trusty Not in release
linux-euclid 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
linux-flo 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-gcp 19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-1042.45
16.04 LTS xenial
Fixed 4.15.0-1041.43
14.04 LTS trusty Not in release
linux-gcp-5.3 19.10 eoan Not in release
19.04 disco 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-edge 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.15.0-1042.45
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-gke-4.15 19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Fixed 4.15.0-1041.43
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke-5.0 19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-goldfish 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-grouper 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic 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-hwe 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 5.0.0-23.24~18.04.1
16.04 LTS xenial
Fixed 4.15.0-60.67~16.04.1
14.04 LTS trusty Not in release
linux-hwe-edge 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Fixed 4.15.0-60.67~16.04.1
14.04 LTS trusty Not in release
linux-kvm 19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-1043.43
16.04 LTS xenial
Fixed 4.4.0-1043.49
14.04 LTS trusty Not in release
linux-lts-trusty 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic 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-utopic 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Ignored
linux-lts-vivid 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Ignored
linux-lts-wily 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Ignored
linux-lts-xenial 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 4.4.0-144.170~14.04.1
linux-maguro 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic 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-mako 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-manta 19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic 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 19.10 eoan
Fixed 4.15.0-1059.68
19.04 disco Ignored
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-1056.65
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-oem-5.4 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 19.10 eoan
Not affected
19.04 disco
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-oracle 19.10 eoan
Not affected
19.04 disco
Fixed 5.0.0-1004.8
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-1022.25
16.04 LTS xenial
Fixed 4.15.0-1022.25~16.04.1
14.04 LTS trusty Not in release
linux-oracle-5.0 19.10 eoan Not in release
19.04 disco Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-raspi2 19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored
18.04 LTS bionic
Fixed 4.15.0-1044.47
16.04 LTS xenial
Fixed 4.4.0-1106.114
14.04 LTS trusty Not in release
linux-raspi2-5.3 19.10 eoan Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-snapdragon 19.10 eoan Not in release
19.04 disco
Not affected
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.15.0-1062.69
16.04 LTS xenial
Fixed 4.4.0-1110.115
14.04 LTS trusty Not in release

Notes

sbeattie

claims to be introduced by fix for CVE-2018-9516

tyhicks

HID debug events are exposed via debugfs which is only accessible by the root user in Ubuntu

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 4.4 · Medium
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3932-1
    • Linux kernel vulnerabilities
    • 2 April 2019
    • USN-3932-2
    • Linux kernel (Xenial HWE) vulnerabilities
    • 2 April 2019
    • USN-4118-1
    • Linux kernel (AWS) vulnerabilities
    • 2 September 2019
    • USN-4115-1
    • Linux kernel vulnerabilities
    • 2 September 2019

Other references