UBUNTU-CVE-2020-27352
- Source
- https://ubuntu.com/security/CVE-2020-27352
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27352.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-27352
- Upstream
- Downstream
- Related
- Published
- 2021-02-10T00:00:00Z
- Modified
- 2026-02-04T02:19:39.742743Z
- Severity
-
- 9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Ubuntu - high
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Ubuntu:16.04:LTS / snapd
Package
- Name
- snapd
- Purl
- pkg:deb/ubuntu/snapd@2.48.3?arch=source&distro=xenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.48.3
Affected versions
1.*
1.9
1.9.1.1
1.9.2
2.*
2.0
2.0.1
2.0.2
2.0.3
2.0.5
2.0.8
2.0.9
2.0.10
2.11+0.16.04
2.12+0.16.04
2.13
2.14.2~16.04
2.15.2ubuntu1
2.16ubuntu3
2.17.1ubuntu1
2.20.1ubuntu1
2.21
2.22.2
2.22.3
2.22.6
2.23.1
2.24.1
2.25
2.26.10
2.27.5
2.28.5
2.29.4.2
2.32.3.2
2.32.9
2.33.1ubuntu2
2.34.2
2.34.2ubuntu0.1
2.37.4
2.37.4ubuntu0.1
2.38
2.39.2
2.39.2ubuntu0.2
2.40
2.42.1
2.45.1
2.45.1ubuntu0.2
2.46.1
2.47.1
2.48
Ecosystem specific
{
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.48.3"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.48.3"
},
{
"binary_name": "snap-confine",
"binary_version": "2.48.3"
},
{
"binary_name": "snapd",
"binary_version": "2.48.3"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.48.3"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.48.3"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.48.3"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.48.3"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.48.3"
}
],
"availability": "No subscription required"
}
Ubuntu:18.04:LTS / snapd
Package
- Name
- snapd
- Purl
- pkg:deb/ubuntu/snapd@2.48.3+18.04?arch=source&distro=bionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.48.3+18.04
Affected versions
2.*
2.28.5+17.10
2.29.4.1+18.04
2.29.4.2+18.04
2.31.1+18.04
2.32+18.04~pre5
2.32+18.04~pre6
2.32+18.04
2.32.3.2+18.04
2.32.5+18.04
2.32.8+18.04
2.32.9+18.04
2.33.1+18.04ubuntu2
2.34.2+18.04
2.34.2+18.04.1
2.37.1+18.04
2.37.1.1+18.04
2.37.4+18.04
2.37.4+18.04.1
2.38+18.04
2.39.2+18.04
2.40+18.04
2.42.1+18.04
2.45.1+18.04
2.45.1+18.04.2
2.46.1+18.04
2.47.1+18.04
2.48+18.04
Ecosystem specific
{
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "snap-confine",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "snapd",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.48.3+18.04"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.48.3+18.04"
}
],
"availability": "No subscription required"
}
Ubuntu:20.04:LTS / snapd
Package
- Name
- snapd
- Purl
- pkg:deb/ubuntu/snapd@2.48.3+20.04?arch=source&distro=focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.48.3+20.04
Affected versions
2.*
2.41+19.10.1
2.42.1+20.04
2.43.3+git1.8109f8
2.44~pre1+20.04
2.44+20.04
2.44.2+20.04
2.44.3+20.04
2.45.1+20.04
2.45.1+20.04.2
2.46.1+20.04
2.47.1+20.04
2.48+20.04
Ecosystem specific
{
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "snap-confine",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "snapd",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.48.3+20.04"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.48.3+20.04"
}
],
"availability": "No subscription required"
}