The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: libgupnp-1.2-0 1.2.4-1ubuntu0.21.04.1 Ubuntu 20.10: libgupnp-1.2-0 1.2.4-1ubuntu0.20.10.1 Ubuntu 20.04 LTS: libgupnp-1.2-0 1.2.3-0ubuntu0.20.04.2 After a standard system update you need to reboot your computer to make all the necessary changes.
https://ubuntu.com/security/notices/USN-4970-1
CVE-2021-33516
https://launchpad.net/ubuntu/+source/gupnp/1.2.4-1ubuntu0.21.04.1 https://launchpad.net/ubuntu/+source/gupnp/1.2.4-1ubuntu0.20.10.1 https://launchpad.net/ubuntu/+source/gupnp/1.2.3-0ubuntu0.20.04.2
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