- Vulnerability/
- USN-4728-1
10/2/2021
USN-4728-1: snapd vulnerability
First published: Wed Feb 10 2021(Updated: )
Gilad Reti and Nimrod Stoler discovered that snapd did not correctly specify cgroup delegation when generating systemd service units for various container management snaps. This could allow a local attacker to escalate privileges via access to arbitrary devices of the container host from within a compromised or malicious container.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/snapd | <2.48.3+20.10 | 2.48.3+20.10 |
| Ubuntu Ubuntu | =20.10 | |
| All of | ||
| ubuntu/snapd | <2.48.3+20.04 | 2.48.3+20.04 |
| Ubuntu Ubuntu | =20.04 | |
| All of | ||
| ubuntu/snapd | <2.48.3+18.04 | 2.48.3+18.04 |
| Ubuntu Ubuntu | =18.04 | |
| All of | ||
| ubuntu/snapd | <2.48.3 | 2.48.3 |
| Ubuntu Ubuntu | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2020-27352
- https://launchpad.net/ubuntu/+source/snapd/2.48.3+20.10
- https://launchpad.net/ubuntu/+source/snapd/2.48.3+20.04
- https://launchpad.net/ubuntu/+source/snapd/2.48.3+18.04
- https://launchpad.net/ubuntu/+source/snapd/2.48.3
- https://ubuntu.com/security/notices/USN-4728-1 (Advisory)
- collector/usn
- source/Ubuntu
- agent/software-canonical-lookup
- agent/severity
- agent/last-modified-date
- agent/title
- agent/references
- agent/softwarecombine
- agent/type
- agent/description
- agent/first-publish-date
- agent/event
- agent/tags
- agent/trending
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu ubuntu
- version/ubuntu ubuntu/20.10
- version/ubuntu ubuntu/20.04
- version/ubuntu ubuntu/18.04
- version/ubuntu ubuntu/16.04