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Vulnerability · Published May 15, 2020 · Assigned by canonical

CVE-2020-11931Ubuntu modifications to pulseaudio to provide snap security enforcement could be unloaded

Low 3.3

In plain English

A low-severity improper access control in pulseaudio from Canonical. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.3%top 73.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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;

Affected products (as reported)

VendorProductVersions
Canonical pulseaudio 1:8.0 – before 1:8.0-0ubuntu3.121:11.1 – before 1:11.1-1ubuntu7.71:13.0 – before 1:13.0-1ubuntu1.21:13.99.1 – before 1:13.99.1-1ubuntu3.2

Weakness: CWE-284 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References