CVE-2020-27348

Name: CVE-2020-27348
Creator: NVD / NIST
Published: 2020-12-04T03:15:12.413+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2020-27348 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1.

Metrics

CVSS 3.1

6.8/10

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

EPSS Probability

0.67%

47.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Canonical	Snapcraft	< 4.4.4
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04

References

https://bugs.launchpad.net/bugs/1901572Exploit, Issue Tracking, Third Party Advisory
https://github.com/snapcore/snapcraft/pull/3345Third Party Advisory
https://usn.ubuntu.com/usn/usn-4661-1Patch, Third Party Advisory
https://bugs.launchpad.net/bugs/1901572Exploit, Issue Tracking, Third Party Advisory
https://github.com/snapcore/snapcraft/pull/3345Third Party Advisory
https://usn.ubuntu.com/usn/usn-4661-1Patch, Third Party Advisory

Timeline

Published: Dec 4, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27348?

How severe is CVE-2020-27348?

CVE-2020-27348 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27348?

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-2020-27348?

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

Scan your code now

Source: NVD / NIST