CVE-2020-16121

PackageKit provided detailed error messages to unprivileged callers that exposed information about file presence and mimetype of files that the user would be unable to determine on its own.

Date published : 2020-11-06

https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1888887

https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html