CVE-2020-16123
Last modified
CVE-2020-16123 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Canonical | Ubuntu Linux | 20.10 |
References
- https://launchpad.net/bugs/1895928Exploit, Issue Tracking, Third Party Advisory
- https://ubuntu.com/USN-4640-1Patch, Third Party Advisory
- https://launchpad.net/bugs/1895928Exploit, Issue Tracking, Third Party Advisory
- https://ubuntu.com/USN-4640-1Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-16123?
How severe is CVE-2020-16123?
How do I fix CVE-2020-16123?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-16117In GNOME evolution-data-server before 3.35.91, a malicious s…5.9
- CVE-2020-16118In GNOME Balsa before 2.6.0, a malicious server operator or …7.5
- CVE-2020-16119Use-after-free vulnerability in the Linux kernel exploitable…7.8
- CVE-2020-16120Overlayfs did not properly perform permission checking when …4.4
- CVE-2020-16121PackageKit provided detailed error messages to unprivileged …3.3
- CVE-2020-16122PackageKit's apt backend mistakenly treated all local debs a…7.8
- CVE-2020-16124Integer Overflow or Wraparound vulnerability in the XML RPC …9.8
- CVE-2020-16125gdm3 versions before 3.36.2 or 3.38.2 would start gnome-init…6.8
- CVE-2020-16126An Ubuntu-specific modification to AccountsService in versio…3.3
- CVE-2020-16127An Ubuntu-specific modification to AccountsService in versio…5.5
- CVE-2020-16128The aptdaemon DBus interface disclosed file existence disclo…3.8
- CVE-2020-1613A vulnerability in the BGP FlowSpec implementation may cause…7.5
Are you affected by CVE-2020-16123?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST