CVE-2020-11931
Ubuntu modifications to pulseaudio to provide snap security enforcement could be unloaded
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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;
Una modificación específica de Ubuntu para Pulseaudio para proporcionar mediación de seguridad para aplicaciones empaquetadas de Snap se encontró que presenta una omisión de la restricción de acceso prevista para los snaps que conecta cualquiera pulseaudio, audio-playback o audio-record mediante la descarga del módulo de la política de snap de pulseaudio. Este problema afecta a: pulseaudio versiones 1:8.0 anteriores a 1:8.0-0ubuntu3.12; versiones 1:11.1 anteriores a 1:11.1-1ubuntu7.7; versiones 1:13.0 anteriores a 1:13.0-1ubuntu1.2; versiones 1:13.99.1 anteriores a 1:13.99.1-1ubuntu3.2;
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-04-20 CVE Reserved
- 2020-05-12 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-284: Improper Access Control
- CWE-668: Exposure of Resource to Wrong Sphere
CAPEC
References (2)
URL | Tag | Source |
---|---|---|
https://forum.snapcraft.io/t/audio-switcher-pulseaudio-interface-auto-connect-request/16648/3 | Third Party Advisory |
URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
---|---|---|
https://usn.ubuntu.com/4355-1 | 2020-05-19 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Pulseaudio Search vendor "Pulseaudio" | Pulseaudio Search vendor "Pulseaudio" for product "Pulseaudio" | <= 1.8.0 Search vendor "Pulseaudio" for product "Pulseaudio" and version " <= 1.8.0" | - |
Affected
| ||||||
Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
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Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04" | lts |
Affected
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