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ubuntucveUbuntu.comUB:CVE-2020-27352
HistoryFeb 10, 2021 - 12:00 a.m.

CVE-2020-27352

2021-02-1000:00:00
ubuntu.com
ubuntu.com
9

9.3 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

15.7%

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.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchsnapd< 2.48.3+18.04UNKNOWN
ubuntu20.04noarchsnapd< 2.48.3+20.04UNKNOWN
ubuntu20.10noarchsnapd< 2.48.3+20.10UNKNOWN
ubuntu16.04noarchsnapd< 2.48.3UNKNOWN

9.3 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

15.7%