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USN-5189-1: GLib vulnerability

13 December 2021

GLib could be used to escalate privilege if it received specially crafted input.



  • glib2.0 - GLib library of C routines


It was discovered that GLib incorrectly handled certain environment variables.
An attacker could possibly use this issue to escalate privileges.

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.