Ubuntu Security Notice USN-4494-1
September 15, 2020
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
gupnp could be made to expose sensitive information or perform network
attacks if it received specially crafted network traffic.
- gupnp: framework for creating UPnP devices and control points
It was discovered that GUPnP incorrectly handled certain subscription
requests. A remote attacker could possibly use this issue to exfiltrate
data or use GUPnP to perform DDoS attacks.
The problem can be corrected by updating your system to the following
Ubuntu 20.04 LTS:
After a standard system update you need to reboot your computer to make
all the necessary changes.