CVE-2020-11931

LowCVSS 3.3/10Last modified Jun 17, 2026

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;

Metrics

CVSS 3.1 3.3/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-284 CWE-668

Affected software

Vendor	Product	Versions
Canonical	pulseaudio	>= 1:8.0, < 1:8.0-0ubuntu3.12; >= 1:11.1, < 1:11.1-1ubuntu7.7; >= 1:13.0, < 1:13.0-1ubuntu1.2; >= 1:13.99.1, < 1:13.99.1-1ubuntu3.2

References

https://forum.snapcraft.io/t/audio-switcher-pulseaudio-interface-auto-connect-request/16648/3Third Party Advisory
https://usn.ubuntu.com/4355-1/Third Party Advisory
https://forum.snapcraft.io/t/audio-switcher-pulseaudio-interface-auto-connect-request/16648/3Third Party Advisory
https://usn.ubuntu.com/4355-1/Third Party Advisory

Timeline

Published: May 15, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

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