vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-4120): snapd vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Feb 17, 2022 | Feb 18, 2022 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Feb 17, 2022
Added
Feb 18, 2022
Modified
Aug 18, 2025
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
Solutions
ubuntu-pro-upgrade-snap-confineubuntu-pro-upgrade-snapd
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