usn-4640-1
Vulnerability from osv_ubuntu
Published
2020-11-23 16:03
Modified
2026-04-22 07:36
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
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-16123",
"severity": [
{
"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": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "pulseaudio",
"purl": "pkg:deb/ubuntu/pulseaudio@1:8.0-0ubuntu3.15?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:8.0-0ubuntu3.15"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:6.0-0ubuntu13",
"1:7.1-1ubuntu1",
"1:7.1-1ubuntu2",
"1:7.1-1ubuntu3",
"1:7.1-1ubuntu6",
"1:7.1-1ubuntu7",
"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"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-16123",
"severity": [
{
"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": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "pulseaudio",
"purl": "pkg:deb/ubuntu/pulseaudio@1:11.1-1ubuntu7.11?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:11.1-1ubuntu7.11"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1:10.0-2ubuntu3",
"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"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2020-16123",
"severity": [
{
"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": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "pulseaudio",
"purl": "pkg:deb/ubuntu/pulseaudio@1:13.99.1-1ubuntu3.8?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1:13.99.1-1ubuntu3.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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"
]
}
],
"aliases": [],
"details": "James Henstridge discovered that an Ubuntu-specific patch caused\nPulseAudio to incorrectly handle snap client connections. An attacker\ncould possibly use this to expose sensitive information.\n",
"id": "USN-4640-1",
"modified": "2026-04-22T07:36:58Z",
"published": "2020-11-23T16:03:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4640-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-16123"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "pulseaudio vulnerability",
"upstream": [
"UBUNTU-CVE-2020-16123"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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