After much hyping and following prematurely leaked information by a third party, security researcher Simone Margaritelli has released details about four zero-day vulnerabilities in the Common UNIX Printing System (CUPS) that can be abused by remote, unauthenticated attackers to achieve code execution on vulnerable Linux and Unix-like sistems. The CUPS vulnerabilities CUPS is an open-source printing system that allows a computer on which is installed to act as a print server.

Source: Help Net Security