Detections
Analytics

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : PulseAudio vulnerability (USN-4355-1)

low Nessus Plugin ID 136546

Language:

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4355-1 advisory.

 PulseAudio in Ubuntu contains additional functionality to mediate audio recording for snap packages and it was discovered that this functionality did not mediate PulseAudio module unloading. An attacker-controlled snap with only the audio-playback interface connected could exploit this to bypass access controls and record audio.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4355-1

Plugin Details

Severity: Low

ID: 136546

File Name: ubuntu_USN-4355-1.nasl

Version: 1.9

Type: local

Agent: unix

Published: 5/13/2020

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2020-11931

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpulsedsp, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-esound-compat, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-bluetooth, p-cpe:/a:canonical:ubuntu_linux:libpulse0, p-cpe:/a:canonical:ubuntu_linux:libpulse-mainloop-glib0, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-jack, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpulse-dev, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-x11, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-utils, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-trust-store, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-gconf, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-droid, p-cpe:/a:canonical:ubuntu_linux:pulseaudio, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-equalizer, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-zeroconf, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-raop, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-lirc, p-cpe:/a:canonical:ubuntu_linux:pulseaudio-module-gsettings

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 5/12/2020

Vulnerability Publication Date: 5/15/2020

Reference Information

CVE: CVE-2020-11931

USN: 4355-1