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Unauthenticated RCE Flaw With CVSS 9.9 Rating For Linux Systems Affects CUPS
(www.phoronix.com)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Remember when printers were connected by a USB cable?
Also,
sudo ss -tunlp
to see what ports are listening on your system and which applications/services use them. (Linux)ss -K
closes dead portsIf you didn't explicitly open a port, ask why it needs to be open (listening). (25, 22, 67, 53,5353)
Make sure what you did open is opened at the right addresses. Ie localhost, 0.0.0.0, 127.0.0.1, etc for the purpose.
Use a firewall and block ALL incoming traffic.
The Firewall will not help you in this case