CVE-2020-11931

LOW

pulseaudio < 1.8.0 - Improper Access Control via Snap Policy Module Unload

Title source: llm
STIX 2.1

Description

An Ubuntu-specific modification to Pulseaudio to provide security mediation for Snap-packaged applications was found to have a bypass of intended access restriction for snaps which plugs any of pulseaudio, audio-playback or audio-record via unloading the pulseaudio snap policy module. This issue affects: pulseaudio 1:8.0 versions prior to 1:8.0-0ubuntu3.12; 1:11.1 versions prior to 1:11.1-1ubuntu7.7; 1:13.0 versions prior to 1:13.0-1ubuntu1.2; 1:13.99.1 versions prior to 1:13.99.1-1ubuntu3.2;

References (2)

Core 2
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4355-1/

Scores

CVSS v3 3.3
EPSS 0.0004
EPSS Percentile 13.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Details

CWE
CWE-284 CWE-668
Status published
Products (5)
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 19.10
canonical/ubuntu_linux 20.04
pulseaudio/pulseaudio < 1.8.0
Published May 15, 2020
Tracked Since Feb 18, 2026