Once again researcher from cloud security company Qualys have found another critical security bug on Linux GNU C Library (glibc) dubbed as GHOST (CVE-2015-0235). This vulnerability allows any hacker to take full control over the vulnerable system remotely without knowing any system IDs or passwords.
Qualys team had reported the issue to all the major distributor and most of them have released the patch for the vulnerability. One of the major Linux distributor Red Hat have already issues the patch for the bug and users can update it to fix GHOST. Currently Red Hat had released the patch for the 5, 6, and 7 via the Red Hat Network.