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USN-4700-1: PyXDG vulnerability

19 January 2021

PyXDG could be made to run programs as your login if it received specially crafted input.



  • pyxdg - python library to access standards


Alexandre D'Hondt discovered that PyXDG did not properly sanitize input.
An attacker could exploit this with a crafted .menu file to execute
arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.