CVE catalog
CVE-2020-16123
pulseaudio: CVE-2020-16123
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.32% · Oct 25, 2026
An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCM_CREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited by an attacker to expose sensitive information. Fixed in 1:13.99.3-1ubuntu2, 1:13.99.2-1ubuntu2.1, 1:13.99.1-1ubuntu3.8, 1:11.1-1ubuntu7.11, and 1:8.0-0ubuntu3.15.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pulseaudio | sid | 17.0+dfsg1-3 | not affected |
| Debian | pulseaudio | forky | 17.0+dfsg1-3 | not affected |
| Debian | pulseaudio | trixie | 17.0+dfsg1-2 | not affected |
| Debian | pulseaudio | bookworm | 16.1+dfsg1-2 | not affected |
| Ubuntu | pulseaudio | 16.04 | 1:6.0-0ubuntu13 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu6 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu7 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.1 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.2 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.3 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.4 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.7 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.8 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.9 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.10 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.11 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.12 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.14 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.15 | fixed |
| Ubuntu | pulseaudio | 18.04 | 1:10.0-2ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu4 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu5 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu6 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.1 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.2 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.4 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.5 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.7 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.8 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.9 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.10 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.11 | fixed |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-1ubuntu4 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-1ubuntu5 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-3ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-3ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.2 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.3 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.4 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.5 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.6 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.7 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.8 | fixed |
| Ubuntu | pulseaudio | 16.04 | 1:6.0-0ubuntu13 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu6 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:7.1-1ubuntu7 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.1 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.2 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.3 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.4 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.7 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.8 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.9 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.10 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.11 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.12 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.14 | vulnerable |
| Ubuntu | pulseaudio | 16.04 | 1:8.0-0ubuntu3.15 | fixed |
| Ubuntu | pulseaudio | 18.04 | 1:10.0-2ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu4 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu5 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu6 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.1 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.2 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.4 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.5 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.7 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.8 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.9 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.10 | vulnerable |
| Ubuntu | pulseaudio | 18.04 | 1:11.1-1ubuntu7.11 | fixed |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-1ubuntu4 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-1ubuntu5 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-3ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.0-3ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu1 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu2 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.2 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.3 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.4 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.5 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.6 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.7 | vulnerable |
| Ubuntu | pulseaudio | 20.04 | 1:13.99.1-1ubuntu3.8 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pulseaudio | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | pulseaudio | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | pulseaudio | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | pulseaudio | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Ubuntu | pulseaudio | deb | 16.04 | 1:8.0-0ubuntu3.15 | Not reported | UBUNTU-CVE-2020-16123 | Not reported |
| Ubuntu | pulseaudio | deb | 18.04 | 1:11.1-1ubuntu7.11 | Not reported | UBUNTU-CVE-2020-16123 | Not reported |
| Ubuntu | pulseaudio | deb | 20.04 | 1:13.99.1-1ubuntu3.8 | Not reported | UBUNTU-CVE-2020-16123 | Not reported |
| Ubuntu | pulseaudio | deb | 16.04 | 1:8.0-0ubuntu3.15 | Not reported | USN-4640-1 | Not reported |
| Ubuntu | pulseaudio | deb | 18.04 | 1:11.1-1ubuntu7.11 | Not reported | USN-4640-1 | Not reported |
| Ubuntu | pulseaudio | deb | 20.04 | 1:13.99.1-1ubuntu3.8 | Not reported | USN-4640-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libpulse0]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [libpulse-dev]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [libpulsedsp]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [libpulse-mainloop-glib0]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-equalizer]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-module-bluetooth]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-module-gsettings]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-module-jack]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-module-lirc]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-module-raop]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-module-zeroconf]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
- [pulseaudio-utils]Not affected
Source package: [pulseaudio]
Details (2)
16.1+dfsg1-2+b1· amd64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
16.1+dfsg1-2+b1· arm64 · bookwormNot affected
dsa · pulseaudio · debian · bookworm
Observed: