A critical Linux security hole GHOST
As you may have read in the media recently, a new zero-day security vulnerability for a common component in the Linux operating system has been released into the wild. This vulnerability allows attackers to remotely access some vulnerable Linux-based systems without the use of compromised passwords or other user credentials. Once in the system, attackers could leverage other vulnerabilities to escalate privileges until they gain root access. A good article that describes the vulnerability can be found here: