title: Ubuntu modifications to pulseaudio to provide snap security enforcement could be unloaded
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;
problem types: CWE-284 Improper Access Control
affected:
{
product: pulseaudio
vendor: Canonical
versions:
lessThan: 1:8.0-0ubuntu3.12, status: affected, version: 1:8.0, versionType: custom
lessThan: 1:11.1-1ubuntu7.7, status: affected, version: 1:11.1, versionType: custom
lessThan: 1:13.0-1ubuntu1.2, status: affected, version: 1:13.0, versionType: custom
lessThan: 1:13.99.1-1ubuntu3.2, status: affected, version: 1:13.99.1, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 3.3
baseSeverity: LOW
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
version: 3.1
]