Privilege escalation in Canonical Ltd. Snapd
CVE-2020-27352
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 o…
Vulnerability class: Privilege Escalation
EPSS: 0.003 (17.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Canonical Ltd. Snapd — versions 0
- Canonical Snapd
- Canonical Ubuntu_linux — versions 16.04, 18.04, 20.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@ubuntu.com (issue-tracking, Exploit, Issue Tracking)
- security@ubuntu.com (vendor-advisory, Vendor Advisory)
- security@ubuntu.com (issue-tracking, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-27352?
- CVE-2020-27352 is a critical-severity vulnerability in Canonical Ltd. Snapd, classified under Improper Privilege Management. CVSS score: 9.3/10. Published 2024-06-21.
- How severe is CVE-2020-27352?
- Critical severity. CVSS v3 base score is 9.3 out of 10.
- Is CVE-2020-27352 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.