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CVE-2018-19824

Publication date 3 December 2018

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

In the Linux kernel through 4.19.6, a local user could exploit a use-after-free in the ALSA driver by supplying a malicious USB Sound device (with zero interfaces) that is mishandled in usb_audio_probe in sound/usb/card.c.

From the Ubuntu Security Team

Mathias Payer and Hui Peng discovered a use-after-free vulnerability in the Advanced Linux Sound Architecture (ALSA) subsystem. A physically proximate attacker could use this to cause a denial of service (system crash).

Status

Package Ubuntu Release Status
linux 19.04 disco
Not affected
18.10 cosmic
Fixed 4.18.0-17.18
18.04 LTS bionic
Fixed 4.15.0-47.50
16.04 LTS xenial
Fixed 4.4.0-142.168
14.04 LTS trusty
Fixed 3.13.0-168.218
linux-aws 19.04 disco
Not affected
18.10 cosmic
Fixed 4.18.0-1012.14
18.04 LTS bionic
Fixed 4.15.0-1035.37
16.04 LTS xenial
Fixed 4.4.0-1075.85
14.04 LTS trusty
Fixed 4.4.0-1038.41
linux-aws-hwe 19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial
Fixed 4.15.0-1035.37~16.04.1
14.04 LTS trusty Not in release
linux-azure 19.04 disco
Not affected
18.10 cosmic
Fixed 4.18.0-1014.14
18.04 LTS bionic
Fixed 4.18.0-1014.14~18.04.1
16.04 LTS xenial
Fixed 4.15.0-1041.45
14.04 LTS trusty
Fixed 4.15.0-1041.45~14.04.1
linux-azure-edge 19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.18.0-1014.14~18.04.1
16.04 LTS xenial
Fixed 4.15.0-1041.45
14.04 LTS trusty Not in release
linux-euclid 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-flo 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 19.04 disco
Not affected
18.10 cosmic
Fixed 4.18.0-1008.9
18.04 LTS bionic
Fixed 4.15.0-1029.31
16.04 LTS xenial
Fixed 4.15.0-1029.31~16.04.1
14.04 LTS trusty Not in release
linux-gcp-edge 19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.18.0-1008.9~18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
linux-gke 19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-goldfish 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 19.04 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 19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.18.0-17.18~18.04.1
16.04 LTS xenial
Fixed 4.15.0-47.50~16.04.1
14.04 LTS trusty Not in release
linux-hwe-edge 19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic
Not affected
16.04 LTS xenial
Fixed 4.15.0-47.50~16.04.1
14.04 LTS trusty Not in release
linux-kvm 19.04 disco
Not affected
18.10 cosmic
Fixed 4.18.0-1009.9
18.04 LTS bionic
Fixed 4.15.0-1031.31
16.04 LTS xenial
Fixed 4.4.0-1040.46
14.04 LTS trusty Not in release
linux-lts-trusty 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 19.04 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 19.04 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 19.04 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 19.04 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 4.4.0-142.168~14.04.1
linux-maguro 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 19.04 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 19.04 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 19.04 disco
Not affected
18.10 cosmic
Fixed 4.15.0-1035.40
18.04 LTS bionic
Fixed 4.15.0-1035.40
16.04 LTS xenial Ignored
14.04 LTS trusty Not in release
linux-oracle 19.04 disco
Not affected
18.10 cosmic
Fixed 4.15.0-1010.12
18.04 LTS bionic
Fixed 4.15.0-1010.12
16.04 LTS xenial
Fixed 4.15.0-1010.12~16.04.1
14.04 LTS trusty Not in release
linux-raspi2 19.04 disco
Not affected
18.10 cosmic
Fixed 4.18.0-1011.13
18.04 LTS bionic
Fixed 4.15.0-1033.35
16.04 LTS xenial
Fixed 4.4.0-1103.111
14.04 LTS trusty Not in release
linux-snapdragon 19.04 disco
Not affected
18.10 cosmic Not in release
18.04 LTS bionic
Fixed 4.15.0-1053.57
16.04 LTS xenial
Fixed 4.4.0-1107.112
14.04 LTS trusty Not in release

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 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3933-2
    • Linux kernel (Trusty HWE) vulnerabilities
    • 2 April 2019
    • USN-3933-1
    • Linux kernel vulnerabilities
    • 2 April 2019
    • USN-3930-2
    • Linux kernel (HWE) vulnerabilities
    • 2 April 2019
    • USN-3879-1
    • Linux kernel vulnerabilities
    • 4 February 2019
    • USN-3879-2
    • Linux kernel (Xenial HWE) vulnerabilities
    • 4 February 2019
    • USN-3930-1
    • Linux kernel vulnerabilities
    • 2 April 2019
    • USN-3931-2
    • Linux kernel (HWE) vulnerabilities
    • 2 April 2019
    • USN-3931-1
    • Linux kernel vulnerabilities
    • 2 April 2019

Other references