USN-6768-1: GLib vulnerability

9 May 2024

GLib could be made to accept spoofed D-Bus signals.

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Releases

Packages

  • glib2.0 - GLib library of C routines

Details

Alicia Boya García discovered that GLib incorrectly handled signal
subscriptions. A local attacker could use this issue to spoof D-Bus signals
resulting in a variety of impacts including possible privilege escalation.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 24.04
Ubuntu 23.10
Ubuntu 22.04
Ubuntu 20.04

After a standard system update you need to reboot your computer to make all
the necessary changes.

References

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Further reading