PackageKit incorrectly handled certain methods. A local attacker could use this issue to learn the MIME type of any file on the system. Reference: https://packetstormsecurity.com/files/159284/USN-4538-1.txt
Created PackageKit tracking bugs for this issue: Affects: fedora-all [bug 1884561]
External References: More details: https://bugs.launchpad.net/ubuntu/%2Bsource/packagekit/%2Bbug/1888887 https://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-16121.html?_ga=2.191526435.887932068.1602011173-1206535791.1586737989
Patch: https://launchpadlibrarian.net/498537855/0002-Information-disclosure-in-InstallFiles-GetFilesLocal.patch