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USN-5252-2: PolicyKit vulnerability

25 January 2022

policykit-1 could be made to run programs as an administrator.



  • policykit-1 - framework for managing administrative policies and privileges


USN-5252-1 fixed a vulnerability in policykit-1. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that the PolicyKit pkexec tool incorrectly handled
command-line arguments. A local attacker could use this issue to escalate
privileges to an administrator.

Update instructions

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

Ubuntu 16.04
Ubuntu 14.04

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


Related notices

  • USN-5252-1: libpolkit-agent-1-dev, libpolkit-backend-1-0, libpolkit-gobject-1-dev, policykit-1, libpolkit-gobject-1-0, libpolkit-agent-1-0, gir1.2-polkit-1.0, policykit-1-doc, libpolkit-backend-1-dev