Gnome Updater Arbitrary RPM Installation Vulnerability

GNOME is a desktop environment for X11 that is shipped with many popular free unix distributions (most commonly linux) created by a company called Helix Code. One of its components, the updater, is used to download new versions of other components and install them automatically. The updater stores temporary package files in an insecure location (/tmp), therefore it is possible for an attacker with local access to overwrite packages before they are installed, replacing them with malicious versions that can lead to elevated priviliges.


 

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