title: Packagekit's apt backend lets user install untrusted local packages
description: PackageKit's apt backend mistakenly treated all local debs as trusted. The apt security model is based on repository trust and not on the contents of individual files. On sites with configured PolicyKit rules this may allow users to install malicious packages.
problem types: CWE-269 Improper Privilege Management
affected:
{
product: packagekit
vendor: PackageKit
versions:
lessThan: 1.1.13-2ubuntu1.1, status: affected, version: 1.1.13-2ubuntu, versionType: custom
lessThan: 1.1.9-1ubuntu2.18.04.6, status: affected, version: 1.1.9-1ubuntu, versionType: custom
lessThan: 0.8.17-4ubuntu6~gcc5.4ubuntu1.5, status: affected, version: 0.8.17-4ubuntu, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 8.2
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
version: 3.1
]