CVE-2020-16123
published 2020-12-04CVE-2020-16123: 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…
PriorityP422medium4.7CVSS 3.1
AVLACHPRLUINSUCHINAN
EPSS
0.31%
23.3th percentile
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | pulseaudio | >= 1:11.1-1 < 1:11.1-1ubuntu7.11 | 1:11.1-1ubuntu7.11 |
| canonical | pulseaudio | >= 1:13.99.1-1 < 1:13.99.1-1ubuntu3.8 | 1:13.99.1-1ubuntu3.8 |
| canonical | pulseaudio | >= 1:13.99.2-1 < 1:13.99.2-1ubuntu2.1 | 1:13.99.2-1ubuntu2.1 |
| canonical | pulseaudio | >= 1:13.99.3-1 < 1:13.99.3-1ubuntu2 | 1:13.99.3-1ubuntu2 |
| canonical | pulseaudio | >= 1:8.0-0 < 1:8.0-0ubuntu3.15 | 1:8.0-0ubuntu3.15 |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | pulseaudio | — | — |
| pulseaudio | pulseaudio | >= 0 < 1:8.0-0ubuntu3.15 | 1:8.0-0ubuntu3.15 |
| pulseaudio | pulseaudio | >= 0 < 1:11.1-1ubuntu7.11 | 1:11.1-1ubuntu7.11 |
| pulseaudio | pulseaudio | >= 0 < 1:13.99.1-1ubuntu3.8 | 1:13.99.1-1ubuntu3.8 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv4.7MEDIUM
vendor_debian4.4LOW
vendor_redhat4.4MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
PulseAudio vulnerability
vendor_ubuntu·2020-11-23
CVE-2020-16123 PulseAudio vulnerability
Title: PulseAudio vulnerability
Summary: PulseAudio could be made to expose sensitive information.
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.
Instructions: After a standard system update you need to restart your session to make
all the necessary changes.
Red Hat
pulseaudio: race condition in snap policy module allows for information exposure
vendor_redhat·2020-11-23·CVSS 4.4
CVE-2020-16123 [MEDIUM] CWE-362 pulseaudio: race condition in snap policy module allows for information exposure
pulseaudio: race condition in snap policy module allows for information exposure
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.
Package: pulseaudio (Red Hat Enterprise Linux 6) - Not affected
Package: pulseaudio (Red Hat Enterprise Linux 7) - Not affected
Package: pulseaudio (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2020-16123: pulseaudio - An Ubuntu-specific patch in PulseAudio created a race condition where the snap p...
vendor_debian·2020·CVSS 4.4
CVE-2020-16123 [MEDIUM] CVE-2020-16123: pulseaudio - An Ubuntu-specific patch in PulseAudio created a race condition where the snap p...
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.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
GHSA
GHSA-h38w-g4mp-rwv7: 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
ghsa_unreviewed·2022-05-24
CVE-2020-16123 [MEDIUM] CWE-362 GHSA-h38w-g4mp-rwv7: 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
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.
OSV
CVE-2020-16123: 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
osv·2020-11-23·CVSS 4.7
CVE-2020-16123 [MEDIUM] CVE-2020-16123: 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
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-12-04
Published