[USN-4519-1] PulseAudio vulnerability

Avital Ostromich avital.ostromich at canonical.com
Thu Sep 17 23:11:20 UTC 2020

Ubuntu Security Notice USN-4519-1
September 17, 2020

pulseaudio vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS


PulseAudio could be made to crash or run programs as your login if it
received specially crafted input.

Software Description:
- pulseaudio: PulseAudio sound server


Ratchanan Srirattanamet discovered that an Ubuntu-specific patch caused
PulseAudio to incorrectly handle memory under certain error conditions in the
Bluez 5 module. An attacker could use this issue to cause PulseAudio to crash,
resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  libpulse-mainloop-glib0         1:8.0-0ubuntu3.14
  libpulse0                       1:8.0-0ubuntu3.14
  pulseaudio                      1:8.0-0ubuntu3.14
  pulseaudio-module-bluetooth     1:8.0-0ubuntu3.14
  pulseaudio-utils                1:8.0-0ubuntu3.14

In general, a standard system update will make all the necessary changes.


Package Information:

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