USN-4355-1

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Source
https://ubuntu.com/security/notices/USN-4355-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4355-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4355-1
Upstream
Related
Published
2020-05-12T19:25:07Z
Modified
2026-04-22T10:04:53.273165Z
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

Affected packages

Ubuntu:16.04:LTS / pulseaudio

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.0-0ubuntu3.12

Affected versions

1:6.*
1:6.0-0ubuntu13
1:7.*
1:7.1-1ubuntu1
1:7.1-1ubuntu2
1:7.1-1ubuntu3
1:7.1-1ubuntu6
1:7.1-1ubuntu7
1:8.*
1:8.0-0ubuntu2
1:8.0-0ubuntu3
1:8.0-0ubuntu3.1
1:8.0-0ubuntu3.2
1:8.0-0ubuntu3.3
1:8.0-0ubuntu3.4
1:8.0-0ubuntu3.7
1:8.0-0ubuntu3.8
1:8.0-0ubuntu3.9
1:8.0-0ubuntu3.10
1:8.0-0ubuntu3.11

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "libpulse-mainloop-glib0"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "libpulse0"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "libpulsedsp"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-esound-compat"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-bluetooth"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-droid"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-gconf"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-jack"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-lirc"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-raop"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-trust-store"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-x11"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-module-zeroconf"
        },
        {
            "binary_version": "1:8.0-0ubuntu3.12",
            "binary_name": "pulseaudio-utils"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4355-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-11931",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS / pulseaudio

Package

Name
pulseaudio
Purl
pkg:deb/ubuntu/pulseaudio@1:11.1-1ubuntu7.7?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:11.1-1ubuntu7.7

Affected versions

1:10.*
1:10.0-2ubuntu3
1:11.*
1:11.1-1ubuntu1
1:11.1-1ubuntu2
1:11.1-1ubuntu4
1:11.1-1ubuntu5
1:11.1-1ubuntu6
1:11.1-1ubuntu7
1:11.1-1ubuntu7.1
1:11.1-1ubuntu7.2
1:11.1-1ubuntu7.4
1:11.1-1ubuntu7.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "libpulse-mainloop-glib0"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "libpulse0"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "libpulsedsp"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-equalizer"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-esound-compat"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-module-bluetooth"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-module-gconf"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-module-jack"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-module-lirc"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-module-raop"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-module-zeroconf"
        },
        {
            "binary_version": "1:11.1-1ubuntu7.7",
            "binary_name": "pulseaudio-utils"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4355-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-11931",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / pulseaudio

Package

Name
pulseaudio
Purl
pkg:deb/ubuntu/pulseaudio@1:13.99.1-1ubuntu3.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:13.99.1-1ubuntu3.2

Affected versions

1:13.*
1:13.0-1ubuntu1
1:13.0-1ubuntu4
1:13.0-1ubuntu5
1:13.0-3ubuntu1
1:13.0-3ubuntu2
1:13.99.1-1ubuntu1
1:13.99.1-1ubuntu2
1:13.99.1-1ubuntu3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "libpulse-mainloop-glib0"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "libpulse0"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "libpulsedsp"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-equalizer"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-module-bluetooth"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-module-gsettings"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-module-jack"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-module-lirc"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-module-raop"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-module-zeroconf"
        },
        {
            "binary_version": "1:13.99.1-1ubuntu3.2",
            "binary_name": "pulseaudio-utils"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4355-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-11931",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}