CVE-2021-4120
Severity
7.8HIGH
EPSS
0.1%
top 74.86%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 17
Latest updateFeb 24
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
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HExploitability: 1.5 | Impact: 6.0
Affected Packages4 packages
Also affects: Fedora 34, 35, Ubuntu Linux 18.04, 20.04, 21.10