USN-4640-1

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Source
https://ubuntu.com/security/notices/USN-4640-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4640-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4640-1
Upstream
Related
Published
2020-11-23T16:03:54Z
Modified
2026-04-22T10:10:03.869157Z
Summary
pulseaudio vulnerability
Details

James Henstridge discovered that an Ubuntu-specific patch caused PulseAudio to incorrectly handle snap client connections. An attacker could possibly use this to expose sensitive information.

References

Affected packages

Ubuntu:16.04:LTS / pulseaudio

Package

Name
pulseaudio
Purl
pkg:deb/ubuntu/pulseaudio@1:8.0-0ubuntu3.15?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:8.0-0ubuntu3.15

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
1:8.0-0ubuntu3.12
1:8.0-0ubuntu3.14

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpulse-mainloop-glib0",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "libpulse0",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "libpulsedsp",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-esound-compat",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-bluetooth",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-droid",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-gconf",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-jack",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-lirc",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-raop",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-trust-store",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-x11",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-module-zeroconf",
            "binary_version": "1:8.0-0ubuntu3.15"
        },
        {
            "binary_name": "pulseaudio-utils",
            "binary_version": "1:8.0-0ubuntu3.15"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4640-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-16123",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS / pulseaudio

Package

Name
pulseaudio
Purl
pkg:deb/ubuntu/pulseaudio@1:11.1-1ubuntu7.11?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:11.1-1ubuntu7.11

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
1:11.1-1ubuntu7.7
1:11.1-1ubuntu7.8
1:11.1-1ubuntu7.9
1:11.1-1ubuntu7.10

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpulse-mainloop-glib0",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "libpulse0",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "libpulsedsp",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-equalizer",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-esound-compat",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-module-bluetooth",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-module-gconf",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-module-jack",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-module-lirc",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-module-raop",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-module-zeroconf",
            "binary_version": "1:11.1-1ubuntu7.11"
        },
        {
            "binary_name": "pulseaudio-utils",
            "binary_version": "1:11.1-1ubuntu7.11"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4640-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-16123",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / pulseaudio

Package

Name
pulseaudio
Purl
pkg:deb/ubuntu/pulseaudio@1:13.99.1-1ubuntu3.8?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:13.99.1-1ubuntu3.8

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
1:13.99.1-1ubuntu3.2
1:13.99.1-1ubuntu3.3
1:13.99.1-1ubuntu3.4
1:13.99.1-1ubuntu3.5
1:13.99.1-1ubuntu3.6
1:13.99.1-1ubuntu3.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpulse-mainloop-glib0",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "libpulse0",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "libpulsedsp",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-equalizer",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-module-bluetooth",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-module-gsettings",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-module-jack",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-module-lirc",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-module-raop",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-module-zeroconf",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        },
        {
            "binary_name": "pulseaudio-utils",
            "binary_version": "1:13.99.1-1ubuntu3.8"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4640-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-16123",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}