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;
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
| Link | Tags |
|---|---|
| https://forum.snapcraft.io/t/audio-switcher-pulseaudio-interface-auto-connect-request/16648/3 | third party advisory |
| https://usn.ubuntu.com/4355-1/ | third party advisory vendor advisory |