USN-4355-1

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    USN-4355-1

    Published: 12 May 2020Last Modified: 22 Apr 2026

    Summary: pulseaudio vulnerability

    Details: 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.

    References: https://ubuntu.com/security/notices/USN-4355-1, https://ubuntu.com/security/CVE-2020-11931, https://launchpad.net/bugs/1877102

    Affected packages

    Package

    Name: pulseaudio

    Purl: pkg:deb/ubuntu/pulseaudio@1:8.0-0ubuntu3.12?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:8.0-0ubuntu3.12

    Affected versions

    1:6.0-0ubuntu13

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    USN-4355-1 | CVE-DB