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CVE-2020-16122

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4538-1
Posted Sep 24, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4538-1 - Vaisha Bernard discovered that PackageKit incorrectly handled certain methods. A local attacker could use this issue to learn the MIME type of any file on the system. Sami Niemimäki discovered that PackageKit incorrectly handled local deb packages. A local user could possibly use this issue to install untrusted packages, contrary to expectations.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2020-16121, CVE-2020-16122
SHA-256 | 0727ab6776e639630a5e5a5e7b10a7c0f2d23864de9dee99c279ad03b990ae7e
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