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CVE-2021-4120

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CVE-2021-4120

Published: Feb 17, 2022

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

8.2

HIGH

Description

snapd 2.54.2 fails to perform sufficient validation of snap content interface and layout paths, resulting in the ability for snaps to inject arbitrary AppArmor policy rules via malformed content interface and layout declarations and hence escape strict snap confinement. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

VendorProductVersions

Canonical Ltd.

snapd

affected
unspecified - <= 2.54.2

Weaknesses (CWE)

CWE-20

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

FEDORA-2022-82bea71e5a
vendor-advisory
x_refsource_FEDORA
FEDORA-2022-5df8b52ba4
vendor-advisory
x_refsource_FEDORA

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