CVE-2020-27352

Name: CVE-2020-27352
Creator: NVD / NIST
Published: 2024-06-21T20:15:10.63+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2020-27352 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

When generating the systemd service units for the docker snap (and other similar snaps), snapd does not specify Delegate=yes - as a result systemd will move processes from the containers created and managed by these snaps into the cgroup of the main daemon within the snap itself when reloading system units. This may grant additional privileges to a container within the snap that were not originally intended.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

0.26%

16.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Canonical	Snapd	< 2.48.3
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	20.04
Canonical	Ubuntu Linux	20.10

References

https://bugs.launchpad.net/snapd/+bug/1910456Exploit, Issue Tracking
https://ubuntu.com/security/notices/USN-4728-1Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2020-27352Third Party Advisory
https://bugs.launchpad.net/snapd/+bug/1910456Exploit, Issue Tracking
https://ubuntu.com/security/notices/USN-4728-1Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2020-27352Third Party Advisory

Timeline

Published: Jun 21, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-27352?

How severe is CVE-2020-27352?

CVE-2020-27352 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27352?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27352?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST