description: Using the TIOCLINUX ioctl request, a malicious snap could inject contents into the input of the controlling terminal which could allow it to cause arbitrary commands to be executed outside of the snap sandbox after the snap exits. Graphical terminal emulators like xterm, gnome-terminal and others are not affected - this can only be exploited when snaps are run on a virtual console.
affected:
{
vendor: Canonical Ltd.
product: snapd
platforms: Linux
collectionURL: https://github.com/snapcore/snapd/releases
packageName: snapd
repo: https://github.com/snapcore/snapd
versions:
status: unaffected, version: 2.59.5
}
metrics:
format: CVSS
cvssV3_1: [
version: 3.1
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
baseScore: 10
baseSeverity: CRITICAL
]