USN-4355-1: PulseAudio vulnerability
12 May 2020
PulseAudio could allow unintended access to snap packages.
- pulseaudio - PulseAudio sound server
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.
The problem can be corrected by updating your system to the following package versions:
After a standard system update you need to restart your session to make
all the necessary changes.